0  401158  401166  401172  401176  401182  401184  401188  401194  401196  401202  401208  401212  401214  401218  401224  401226  401232  401236  401238  401242  401244  401248  401250  401252  401253  401254  401256  401257  401258  401260  401262  401266  401268  401272  401274  401278  401284  401286  401292  401296  401298  401302  401308  401314  401316  401322  401326  401328  401334  401338  401344  401352  447090 

2、近年来受中东战乱以及世界金融危机的影响,世界油价波动变化很大,下列物质受石油价格影响最小的是(   )

A.聚乙烯   B.煤气   C.煤油    D.石蜡

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1、化学在自然资源的开发和利用中具有重要的意义,下列对其认识中不正确的是(   )

A.利用化学知识和化学规律,人们可以更好的开发和利用资源

B.利用化学知识和化学规律,人们可以制取更多物质,丰富物质世界

C.人们在开发和利用资源的过程中,对环境造成了污染,化学对此无能为力

D.人们对资源的开发和利用过程中,时刻不能忘记资源的可持续性发展

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10.(★★★★★)He through the forest alone.

   A.dare walk B.dare to walk

   C.dares walking D.dares to walk

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9.(★★★★★)It’s dark now.We have to stay here for the night, ?

   A.don’t we B.haven’t we

   C.mustn’t we D.shouldn’t we

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8.(★★★★★)You must have seen the film last night, you?

   A.mustn’t B.isn’t

   C.didn’t D.haven’t

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7.(★★★★★)-Do you think he will do me a favour?

   -As far as I know,he is the last one to help others.He be prepared to give you a hand,though. (南京二模)

   A.might B.must

   D.should

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6.(★★★★★)-Are you coming to Jeff’s party?

   -I’m not sure.I go to the concert intead. (2000年高考)

   A.must B.would

   C.should D.might

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5.(★★★★★)I was really anxious about you________ home without a word.

   (2001年高考)

   A.musn’t leave B.shouldn’t have left

   C.couldn’t have left D.needn’t leave

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4.(★★★★★)Better set off at once,________?

   A.won’t you B.shall we

   C.hadn’t you D.wouldn’t you

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3.(★★★★)I’ve tried many times,but the car just________.

   A.won’t start B.wouldn’t start

   C.doesn’t start D.didn’t start

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