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问题 单项选择题

下图示生物体部分代谢过程。下列有关分析正确的是（）

A．①②③④过程能发生在同一生物个体不同细胞中

B．能进行过程③的生物无核膜，是生产者

C．过程②需要的酶均存在于线粒体内

D．过程①只能在植物细胞的叶绿体中进行

答案

参考答案：B

完形填空

Recently, a website has carried out a survey (31)________ the common view on graduates from Beijing University.

28% of the (32)__________(interview) companies think that they are quite (33)_______(satisfy) with the graduates from Beijing University. The graduates (34)______ their companies have a wide range of (35)________(know) and they learn things very quickly and easily.

(36)_________, most of the companies don’t think much (37)_________ graduates from Beijing University. In their eyes, the graduates always stick to their own opinions and lack the teamwork spirit (38)_________ working. Besides, they may not be satisfied with their jobs, even with big companies, and they usually ask for too much. (39)_______ a result, 34% of the companies insist that they will not employ graduates from Beijing University.

In brief, society and (40)________ the students themselves expect too much from graduates from Beijing University. That’s why a graduate claims that he is rubbish.
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单项选择题

圆柱式滚动轴承的内外圈需要同时与轴颈和座孔配合时，作用力应加在（）上。

A、内圈；

B、内外圈；

C、外圈。
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