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问题 选择题

常温下，等物质的量SO2和H2S 气体，在一定容积的密闭容器中充分反应后，恢复到原温度，容器内压强变为原来的（ ）

A．1/2

B．1/3

C．<1/4

D．>1/4

答案

答案：C

单项选择题

车轮踏面磨损量超过原厚度的（）必须报废。

A、5％

B、10％

C、15％

D、20%
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单项选择题

If we take a close look at successful language learners, we may discover a few techniques (技巧) which makes language learning easier for them.
(16) , successful language learners are independent learners. They do not depend on (依赖) books or teachers; they (17) their own way to learn the language. They try to find the patterns and the rules for themselves, (18) waiting for the teacher to explain everything. They are good guessers who look for clues to form their (19) conclusions which are very different from others’.
Successful language learning is (20) learning. Therefore, successful learners do not wait for a chance to use the language; they (21) such a chance. They find people who speak the language and ask these people to correct them (22) they make mistakes. They will try anything to communicate. When communication is difficult, they can (23) information that is incomplete (不完整的). It is more important for them to learn to (24) in the language than to know the meaning of every word.
Finally, successful language learners are learners with a (25) in order to communicate with these people and learn from them. They want to learn a language because they are interested in the language and the people who speak it. It is necessary for them to learn the language.

Ⅱ. 完形填空

/Close
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中选出一个最佳选项。

A．look for

B．care about

C．work out

D．write down
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