欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

 0  422059  422067  422073  422077  422083  422085  422089  422095  422097  422103  422109  422113  422115  422119  422125  422127  422133  422137  422139  422143  422145  422149  422151  422153  422154  422155  422157  422158  422159  422161  422163  422167  422169  422173  422175  422179  422185  422187  422193  422197  422199  422203  422209  422215  422217  422223  422227  422229  422235  422239  422245  422253  447090 

2.環(huán)境污染問(wèn)題越來(lái)越受到人們的關(guān)注,造成環(huán)境污染的主要原因大多是由于人類生產(chǎn)活動(dòng)中過(guò)度排放有關(guān)物質(zhì)引起的。下列環(huán)境問(wèn)題與所對(duì)應(yīng)的物質(zhì)不相關(guān)的是

   A.溫室效應(yīng)--二氧化碳               B.光化學(xué)污染--二氧化氮

   C.酸雨--二氧化碳                   D.白色污染--一次性塑料制品的使用

試題詳情

1.在元素周期表中位于金屬元素和非金屬元素交界處最容易找到的材料是

   A.制催化劑的材料                    B.耐高溫、耐腐蝕的合金材料

   C.制農(nóng)藥的材料                      D.半導(dǎo)體材料

試題詳情

11.(09江蘇) He did not regret saying what he did but felt that he      it differently.

A. could express             B. would express

C. could have expressed         D. must have expressed

[答案]C

試題詳情

10.(09全國(guó)2) I can’t leave. She told me that I      stay here until she comes back.

A. can    B. must   C. will   D. may

[答案]B

試題詳情

9.(09重慶)  -Hi, Tom. Any idea where Jane is?

-She_____in the classroom. I saw her there just now.

A. shall be  B. should have been

C. must be   D. might have been

[答案]C

試題詳情

8.(09天津) This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.

A. would      B. should   C. could    D. might

[答案]B

試題詳情

7.(09四川) -I don’t care what people think.

-Well, you _______

A. could   B. would  C. should     D. might

[答案]C

[解析]考查情態(tài)動(dòng)詞的用法。答話的人提了一個(gè)建議--你應(yīng)該關(guān)注別人對(duì)你的評(píng)價(jià)的。should可以用來(lái)向別人提建議,所以答案為:C

試題詳情

6.(09上海) It_____ have been Tom that parked the car here, as he is the only one with a car.

A. may     B. can       C. must      D. should

[答案]C

試題詳情

5.(09海南) What do you mean, there are only ten tickets? There      be twelve

A. should                            B. would

C. will                               D. shall

[答案]A。 你這是什么意思,只有十張票嗎?應(yīng)該有十二人。should表示“應(yīng)該,應(yīng)當(dāng)”。

試題詳情

4.(09湖南)- It’s the office! So you     know eating is not allowed here.

- Oh, sorry.

A. must           B. will           C. may            D. need

[答案]A 句意為:這是辦公室!因此你必須知道吃的不允許帶到這里。must表示“絕不”的意思。

試題詳情


同步練習(xí)冊(cè)答案