swap1交换变量地址为什么变量值不变呢？；swap2进行X与Y的值互换为什么X=Y=10了呢？
[问题点数：40分，结帖人Recruit_S]
swap1交换变量地址为什么变量值不变呢？；swap2进行X与Y的值互换为什么X=Y=10了呢？
[问题点数：40分，结帖人Recruit_S]
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匿名用户不能发表回复！|Dim x%:If x Then y = x Else y = x + 1:Print y为什么结果是1?If x Then y = x Else y = x +-学路网-学习路上 有我相伴
Dim x%:If x Then y = x Else y = x + 1:Print y为什么结果是1?If x Then y = x Else y = x +
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在VB中，DIMX%与DIMX！是什么意思答：%,!分别是整形和单静度型数据类型的类型符号，DIMX%可以理解为DIMXASINTEGER的缩写形式VB中Dimx%,y%,z%x=y=z=1'语法没错,但结果都为...答：因为变量x,y,z被使用%后缀声明为整型,所以,它们的值一定是一个数值,并且初始值都是0x=y=z=1相当于x=((y=z)=1)而括号中的是一个逻辑表达式而非赋值语句,其执行顺序应为x=((0=0)=1)x=(True=1)x=(-1=1)'True对应的数值值为-1x=False'由于...这道VB编程题目的答案是什么？1．下面的程序段运行...问：这道VB编程题目的答案是什么？1．下面的程序段运行后，显示的结果是__...答：选(A)x=0x+1=1Dimx%是用类型说明符声明变量的方式%是integer的类型说明符是dimxasinteger的简化写法x初始化时未赋值情况下默认是0所以x=0msgbox(x+1)=1常用类型说明符%integer&long!single#Double$string@currency下面程序段运行后，显示的结果是（）DimxIfxT...问：说明为什么！dimx后面怎么没有as...呢？答：dim是用来定义变量的，当后面木有（as。。。）的时候，表示定义x为变体型（variant）。后面（ifa）表示ifa不等于0，则运行then后面的语句，否则就else。这个题目中x默认为0，所以直接执行else后面的printx+1，所以答案是1，选AvbDIMA$,B%?问：声明变量加$,%或其它符号有什么用?"DIMA$"没有AS什么又会怎样?答：vb定义变量可以用两套符号来表示。1、正规的用integer、long、single等表示，也可以用%、&、！表示。2、对应表示如下：字符串String$整数Integer%长整Long&单精度小数Single!双精度小数Double#货币Currency@变体变量Variant...Dimx%:IfxTheny=xElsey=x+1:Printy为什么结果是1?IfxTheny=xElsey=x+(图26)这是用户提出的一个学习问题,具体问题为:Dim x%:If x Then y = x Else y = x + 1:Print y为什么结果是1?If x Then y = x Else y = x +vbDIMA$,B%?问：声明变量加$,%或其它符号有什么用?"DIMA$"没有AS什么又会怎样?答：vb定义变量可以用两套符号来表示。1、正规的用integer、long、single等表示，也可以防抓取，学路网提供内容。我们通过互联网以及本网用户共同努力为此问题提供了相关答案,以便碰到此类问题的同学参考学习,请注意,我们不能保证答案的准确性,仅供参考,具体如下:vb中dimx(a,b)是什么意思问：PrivateSubCommand1_Click()Dimx(3,5)Fori=1To3Forj=1T...答：定义二维数组防抓取，学路网提供内容。用户都认为优质的答案:DimxAsinteger是什么意思啊答：在多种语言中，都是同一个意思：定义x为整数型用了这个之后，那么x的值会自动取整。防抓取，学路网提供内容。这种语句结构中的x相当于一个逻辑型变量,x=0 时,为假,取其它值都为真.If x Then y = x Else y = x + 1这段代码的意思是：如果x为真,那么y=x,否则y=x+1,本题中的x初始值没有赋值,其它没有赋值的变量的初始值为0,所以if x 为假,程序执行的是else后面的语句,即y=x+1=0+1=1.matlab中max(x,[],dim)理解问：dim中维数怎么理解，还有[]这表示什么呢？谢谢，，。答：1X(1,:)=QPSK_Set(Index(1,:));%%X(1,:)表示X的第一行，QPSK_Set应该是函数，Index(1,:)表示Index的第一行，经过处理，然后赋给X的第一行。对应的X(:,1)表示X的第一列。X(:,2)第二列，以此类推。2&&a=magic(5)防抓取，学路网提供内容。vb中dimx(a,b)是什么意思问：PrivateSubCommand1_Click()Dimx(3,5)Fori=1To3Forj=1T...答：定义二维数组DimxAsinteger是什么意思啊答：在多种语言中，都是同一个意思：定义x为整数型用了这个之后，那么x的值会自动取整。matlab中max(x,[],dim)理解问：dim中维数怎么理解，还有[]这表示什么呢？谢谢，，。答：1X(1,:)=QPSK_Set(Index(1,:));%%X(1,:)表示X的第一行，QPSK_Set应该是函数，Index(1,:)表示Index的第一行，经过处理，然后赋给X的第一行。对应的X(:,1)表示X的第一列。X(:,2)第二列，以此类推。2&&a=magic(5)a=...VB中如果要定义dimx，y，z后面加什么？答：你想保存什么内容就定义变量什么类型string字符串long长整形数值还有很多如果你不写类型默认是变体型自动适应你的数据类型比较费内存罢了。不过多不了多少
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- Copyright & 2017 www.xue63.com All Rights Reserved为什么对函数y=1/x=x^(-1)求积分会得到y=lnx+C，谁能解释一下？求说明求积过程。,
为什么对函数y=1/x=x^(-1)求积分会得到y=lnx+C，谁能解释一下？求说明求积过程。
y=1/x=x^(-1)因为1/x的x可以是正也可以是负 但lnx的x必须&0这是一样的∫1/x+1dx=∫1/xdx +∫1dx=lnx+x+c
http://364805.qganjue.com判断下列各式.哪个能确定y是x的函数?为什么? (1)x2+y＝1, (2)x+y2＝1． 题目和参考答案——精英家教网——
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判断下列各式，哪个能确定y是x的函数？为什么？
(1)x2＋y＝1；
(2)x＋y2＝1．
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3.2指数函数y=2^X和y=(1/2)^X的图像和性质
3.2指数函数y=2^X和y=(1/2)^X的图像和性质 试题
Have you heard about that school bus accident?—Yes, fortunately all on board including the driver ________.A．were saved7 B; Z- j+ T, @ B．was saved3 A0 C: T3 U/ G* Y6 R: D% e( ]
_ C．have saved' d! J2 c1 `1 X% J! b D．has been saved" f0 B" h. d8 V. M! E
If this product does not give you complete satisfaction, please return it to the manufacturer, stating when it ________.A．is purchased / g+ j" e3 I4 i: H7 L; J& D, X B．will be purchased. H9 X5 j% E9 V) f6 G2 h6 ]( c& Z C．purchases# K7 a* a! b8 H/ M) Z! d* h D．has purchased0 I# ]6 i9 ?7 @
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The Frenchman pointed to the spoon and asked me ________ to call that in Chinese.A．whether . E. [& U* I- Y* O7 K B．where7 e% I0 c
e7 G: e! O' i C．which * S! R) b2 V( ]( D D．what* H7 ?' Y, @9 _. ^% `
If you're buying today's paper from the stand, could you get ________ for me?A．one . ^) i/ K# J/ P+ U$ ^# e2 X4 R B．such 8 @4 M; @7 A! J, Q C．this: C$ R* N7 K2 X. G5 d- B- R D．that
X0 Z6 H$ D0 a7 i6 B2 M& g
The two countries are going to meet to _______ some barriers to trade between them.A．make up ' a6 ]8 G2 \* E6 ^5 @ B．use up : `' L) `) @- Y" h C．turn down * J- H) T$ d, [2 c8 \ D．break down5 [4 A9 E6 K- A! i' \# O
He was obviously new to the school and I bet even new to the country.All he wanted was some juice—entering Cafeteria B2 after long hours of classes，he was____.We sat near yet away from him.He was far away from our____，yet forced to be a part of it.He stood at the drink machine，trying to make the machine take his one&dollar bill.After several minutes’ unsuccessful____，from the tables came loud comments and ____.He began to tremble，with tears in the eyes.I saw him turn to sit down，____.But for some reason，he____it.He wouldn’t leave until he got a____.He continued to thrust (塞) the dollar bill into the machine.Then something____happened.A popular senior____from her seat，and with a look of ____，went over to the boy.She____how the machine had a hard time____dollars，then gave him some change and showed him where to ____it.The boy gave her his____and chose a flavor of fruit juice.Then the two walked off in different directions.____it was clear that they were from very different worlds，for one moment，they’d shared a real____.As I walked away from my lunch table that day，I looked at the boy.I remember thinking how he and the dollar were very much____.Neither of them was accepted where the world said they were____to be.But just as the dollar had found a place in the____girl’s pocket，I was sure the boy would____ find his，too.【小题1】$ T( a! W+ G A．unhappy% ]3 j. L3 R9 [' ^) J9 `
K B．thirsty) g! D- O
W* ^; M- [) @4 P, _# d* Y& [ C．energetic0 B1 F9 ]4 K/ h/ j1 c7 ^ D．hungry; a) E1 d' W: S" Y; T: S8 I ( X7 [: F$ T' X; Y. j9 K 【小题2】9 O& i/ A8 j+ V6 Y2 O8 A9 X+ R A．table" e' P2 J+ \0 O- K( Q& b B．world 3 i! B1 R, Q. M. j C．machine 2 D9 G: [( g: g9 K- g6 Z0 @: E D．cafeteria8 U; L
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@- U( U- X0 g. b+ L 【小题3】- c# g( J+ j- V$ D$ e& U A．tests3 a
P8 \+ W0 I2 S) D! S B．activities; P
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^1 W( g 3 N4 O) c! W+ O$ @/ ?- _3 I 【小题4】0 N' I2 ]+ f% W& L1 h$ _1 Y A．disagreements ; G" g3 i9 E1 e7 L4 O
h' ] B．aid 8 a5 D% ^1 @# S9 E5 ?3 B C．arguments ( V5 E) D9 \7 O' S' Y' G* W D．laughter8 C$ [$ [: I% J$ `2 R; ?6 H9 X ! J( h) `3 \' _0 h5 a/ i 【小题5】3 L) M) R( c7 f A．defeated1 N5 Z! [1 [1 J8 b0 L' W( ^! R B．disappointed 2 J$ e/ T8 E
Y: B C．frightened& @$ C/ G8 ?: ?: e2 A" Z D．confused' Q/ ^6 R9 J! \/ H" Y
C+ j9 f# I' @ 【小题6】6 g' e8 ?! d3 e9 E, U$ V- D6 O9 E A．decided against
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g/ V) i( B7 I1 \ B．looked for : I% j1 d
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e% j% I" H- P" U# K D．tried out9 S! F( O/ W! A* H9 V* j, g/ i# e 7 E- X! ^. V+ G7 c$ j 【小题7】& c: ^. K) ^* K" B; K: W A．friend; _( V# @; S6 [6 B8 S; B B．dollar 5 R* _9 ?) _" b/ A C．drink) [" J$ L/ c( ?8 @6 M
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I9 S ) i# ]' a: K/ `) U2 \ 【小题8】0 T- g& N) Y! f A．extraordinary8 W5 W/ R7 K# D, J3 ]4 c% H B．disturbing ! M3 d. Y9 J: g/ R C．amusing $ H! U* I9 d' ]% M' W' K* B2 I D．risky5 I
^# H+ X: _/ j) G' J/ Y# j* C # Z9 T9 [+ H2 \/ I- Z 【小题9】' N/ `; [( K. \( c3 Q" S2 ` A．ordered- d& ?
X+ P4 b3 d8 P B．nodded : O& Q$ P9 Z/ ^& a C．wept/ Z8 @
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[) N) ?2 V2 G3 h0 ?! ?" J 【小题11】, `8 e3 [" j& f& e5 `& P4 W A．explained ; H4 [- F' c3 f B．asked ' R
N$ U/ Y9 I7 A5 _ C．discovered& f& e, \) N2 J. S D．discussed# O# c) S9 K) f( @ 3 c/ \6 V/ L' T# j7 V7 J 【小题12】# e8 ]3 R
e% B# Z) D A．removing5 _2 j2 X4 @/ \( U, I B．accepting# X7 E$ h6 M% @8 i7 D C．separating' Z9 P$ `! H; ?7 M6 i D．displaying. d5 h* Q3 U; \, T& R 8 [* Z# O6 h: j7 [ 【小题13】5 U/ C( h* \- U A．place6 Y) Q! U- W' B% I- c, M7 D6 @ B．take % V$ L7 i8 O0 Y6 j6 G+ i7 B8 ]7 i C．keep+ j9 @% P! [- E" d D．get" J& R" C5 D9 f3 A# J) Y
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M+ D+ d9 X: i6 c* C& b 【小题14】" i, _5 X
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W& ^( ^ % V/ h! Q2 [% _$ b 【小题15】0 O+ a& `6 b0 Q" Z9 \# _/ E A．Because
I4 J( E: ?. [ B．Whenever 5 T3 R7 Z# N% `: C
a C．Since/ G9 X5 H. D8 N7 ^! ] D．Although1 d) U6 b# i- R$ e: H8 L# e ; [+ M+ E3 g. \# U$ j, g 【小题16】3 ^2 L& L) K7 T
I) F& i& K! B A．belief4 Q8 i, Q% j6 Y1 P( S B．concern ' O; U, `, \1 H2 W- I" A* X C．story. W- Y6 ?/ K7 c. f6 d0 U& X D．understanding6 `$ _. I6 T9 j0 C* H 3 F' M% \3 \& T! i 【小题17】3 h! b% I: C/ ^5 X: `. e0 D A．different# B1 L' b$ i. Q% C2 A4 M) ^6 F9 B! _ B．nervous 0 @: I$ G. G; F1 D3 i# Z4 Z6 Q C．alike# T* @9 A5 ?' W: B5 B" N: J' F- B D．special8 T" M3 Q' ]$ W0 \ $ T5 `" P/ U$ j 【小题18】9 U$ @/ Q/ c! _0 W9 G A．supposed" O5 Q. g7 [% h6 M+ Z B．introduced7 g/ i- [$ M# ` C．invented; d& b+ d3 `/ b6 b5 i D．imagined. \4 g, R2 K: \9 W& E' T% W & @* g6 d3 j
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I% J7 K1 i$ G2 ? A．beautiful% N/ ?# A* g7 H8 e* F3 U2 ?$ a* e2 ]
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Grown&ups are often surprised by how well they remember something they learned as children but have never practiced ever since. A man who has not had a chance to go swimming for years can still swim as well as ever when he gets back in the water. He can get on a bicycle after many years and still ride away. He can play catch and hit a ball as well as his son. A mother who has not thought about the words for years can teach her daughter the poem that begins “Twinkle, twinkle, little star” or remember the story of Cinderella or Goldilocks and the Three Bears. One explanation is the law of overlearning, which can be stated as follows: Once we have learned something, additional learning trials increase the length of time we will remember it. In childhood we usually continue to practice such skills as swimming, bicycle riding, and playing baseball long after we have learned them. We continue to listen to and remind ourselves of words such as “Twinkle, twinkle, little star” and childhood tales such as Cinderella and Goldilocks. We not only learn but overlearn.
The multiplication tables (乘法口诀表) are an exception to the general rule that we forget rather quickly the things that we learn in school, because they are another of the things we overlearn in childhood. The law of overlearning explains why cramming (突击学习) for an examination, though it may result in a passing grade, is not a satisfactory way to learn a college course. By cramming, a student may learn the subject well enough to get by on the examination, but he is likely soon to forget almost everything he learned. A little overlearning, on the other hand, is really necessary for one's future development.【小题1】What is the main idea of Paragraph 1?A．People remember well what they learned in childhood.# E: ]4 R) g" N) I* N" ? B．Children have a better memory than grown&ups.. X- L% e, W8 K2 P+ A C．Poem reading is a good way to learn words.; J; W: f9 F, A6 A6 ? D．Stories for children are easy to remember.0 C0 ^' D5 U8 _4 ] 【小题2】The author explains the law of overlearning by________.A．presenting research findings1 U5 ^5 N0 Q& b0 G) B B．setting down general rules' J3 S! ?3 Z! T, [( D C．making a comparison( S' D8 d+ f, L' J: N% a) ` D．using examples! e4 F( M; E8 G' j 【小题3】According to the author, being able to use multiplication tables is ________.A．a result of overlearning1 H2 a% j4 \4 Y6 S B．a special case of cramming1 J0 G+ ?# h7 U) \3 e, A( E" \ C．a skill to deal with math problems. D+ I$ I, N& V7 I" b D．a basic step towards advanced studies9 U; \$ U8 i4 b 【小题4】What is the author's opinion on cramming?A．It leads to failure in college exams.9 F+ S) i/ P% E. ?, X! c B．It's helpful only in a limited way.3 L: N4 P- X9 ^8 Y C．It's possible to result in poor memory." I' I9 E
^ D．It increases students' learning interest.9 F! ?& ]6 P! Y" I, f
音乐在我们的生活中起着重要的作用，生活中不能缺少音乐。音乐可以帮助我们调节情绪：紧张的时候可以使我们轻松，忧伤的时候可以使我们快乐。请根据提示写一篇100词左右的短文，谈谈音乐的重要性，可适当发挥。
Men can be beautiful too，right?China is going to host the 18th World University Student& Beauty Contest in Guangzhou this December.This year for the& first time the contest will include a male section.Students& from over 130 countries will compete for Mr and Miss Beauty.The contest is one of the most respected beauty contests in the world.It was copied by the United Nations University (an international university belonging to the United Nations) in 1986.Stick to studyingLi Yining，an economics professor at Peking University，said that he would not encourage students to try their luck in the stock market (股市)．“They should stress study，” Li said in his speech at Beijing Foreign Studies University.When asked，the professor said he expected house prices in Beijing to continue to rise.Li thinks the government should provide more affordable houses for low&level income people.Campus cinemaStudents at over 100 universities will have a digital cinema on campus after the National Day holiday.The 21st Century Digital Film on Campus Project was launched at the end of September.The ticket will cost 3－8 yuan，rather than 30－40 yuan at cinemas in town.Students often download movies online or watch DVDs.Now they can& enjoy original films in the digital cinema.The digital cinema will show a variety of& films besides Hollywood blockbusters& (好莱坞大片)．Getting practicalAll 12,000 graduates from vocational school in Shanxi Province have landed a job，according to the provincial government.In the past five years， it is estimated that over 95 percent of the professional school graduates have found jobs.However，the number for university graduates is 70 percent.Some employers said that they prefer professional school graduates who learned something more practical in school and expected lower salaries than university students.【小题1】In the third part，the underlined word “launched” may mean________.A．started$ K& Z8 S
b) M) B5 W$ H B．ended( b) f% G( c: ^6 W C．told) c% R6 N. g. K$ b3 B- G D．mentioned) M/ S/ d
H0 Z6 P+ Q 【小题2】Where can the material be chosen from?A．A novel.' b( [" Q5 F$ P4 X/ X9 i B．A newspaper.# R" g, g* I, Q; C' j C．An advertisement. ) Y4 I5 Q. g4 B: j D．A fashion magazine.. I3 [5 W5 S- M- E* U, J* R: K 【小题3】Which of the following statements is NOT true according to the passage?A．More than 130 countries will take part in the 18th World University Student Beauty Contest.. I1 j0 H3 M& @4 G9 S8 e' E1 c
c1 ^ B．The ticket for a digital film on campus will cost 3&8 yuan.0 O( f7 f" K5 _
i& S. Q# R! ^( g C．In the past five years，over 95 percent of the university graduates have found jobs in Shanxi Province.2 ^8 c: C" P$ f8 `: Z D．Over 100 universities will take part in the 21st Century Digital Film on Campus Project.+ E& W7 d' C; O 【小题4】Professor Li thinks that________.A．the house prices in Beijing will keep going up1 c0 c/ U3 Y1 O# X. V! b2 P B．the students should try their luck in the stock market6 R4 [) G+ M( M C．the government can do nothing about the housing problem# J6 \* F- ?9 e D．the students should not only pay attention to study, h- d7 H7 L0 Q
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c 【小题5】What can we infer from the passage?A．In Shanxi Province，the professional school graduates are less popular with employers than university graduates recently." _. S. Y. N2 S2 d B．The digital cinema will only show Hollywood blockbusters.+ b1 j1 H! E- B
[+ M4 Q C．The graduates from universities can put what they learned into practice more easily.$ R) Z1 e4 X
[) ?4 ^ D．No men competed in the World University Students Beauty Contest before this year9 A; S0 g+ G+ R# c/ S
“Reconstituted” families are more and more common in the UK.Steve and Debbie got married in 2001 and had two children，Lily and Alex.Unfortunately，Steve and Debbie’s marriage didn’t work out and they got divorced in 2006.The children live with Debbie.In 2008，Debbie remarried.Her new husband，Martin，has three children from his previous marriage and they visit Debbie，Martin，Lily and Alex at weekends.In addition，Debbie is pregnant with her third child.She’s expecting a boy who will be a half&brother to Lily and Alex and also to Martin’s three other children.Confused？Debbie’s family arrangements might have seemed strange 30 years ago but nowadays this kind of “reconstituted” family is increasingly common in the UK.Almost half of all marriages in Britain end in divorce and over 40% of marriages are remarriages.More than 10% of all British children live with one birth parent and a stepparent—a parent who isn’t their biological mother or father.The traditional “nuclear” family of two parents and their children is not so traditional any more.What does all of this mean for parents in these “reconstituted” families？“There& are& difficulties& and& challenges，”& says Debbie.“Different families have different routines and it can be difficult for children to move between their two families.Birthdays and holidays can be tricky.Where do the children go？Who should they spend their time with？Also，when my children are naughty it can be difficult for Martin to tell_them_off.Things that might be simple in a traditional family can be a bit more complicated.”And how about the children？Martin’s eldest child，Ella，is 12.“I like my two families，” she says.“I live with my& mum but visit my dad quite often and I’m happy that my mum and dad get along OK.They’re not married any more but it’s good that they can still be friends.”& Of course divorce and separation are never easy but many families in the UK are finding ways to make family life work in new ways.【小题1】Why did Steve and Debbie get separated?A．They couldn’t support the children.% S1 C6 A! X$ e3 I4 i B．They couldn’t get along well.$ C5 L7 a# O9 C/ f0 \ C．They were both out of work.0 F; I6 H8 Z4 Z1 N D．They had serious economic problems.; f/ h' g
F+ e. _. G- g& R1 F 【小题2】We can learn from the text that a “nuclear” family ________.A．has two birth parents and their children. R- A( \% c0 M B．has two birth parents and only one child. P6 B. A7 h- i" i9 H" O C．is traditional but complicated: J! O. P: I$ f+ U* `7 j( d D．doesn’t have any children8 ^. B0 S6 Y: D9 _% D- H 【小题3】What do the underlined words “tell them off” in Paragraph 4 most probably mean?A．make them annoyed1 Z% c/ d4 I2 ^4 F" i, f B．send them to school
S; C% V( Z3 H' O. d, B: a3 ? C．let out their secrets5 Q; [! d- X9 h D．talk angrily to them0 T0 e5 I: F9 Q5 C$ b* C! j: T: B8 V 【小题4】What’s the text mainly about?A．The difference between “marriage” and “remarriage”．/ Z. _2 Z5 E. i9 c9 g" `7 c B．More and more people get divorced in the UK.- [' g# N( P4 @6 W! U! @: @
d C．“Reconstituted” families are becoming more and more in the UK.% D7 c! Q3 [/ O) [% K: g4 ?& a D．The marriage situation is becoming severe.6 A' C# U& C; [+ R}