水稻的一个体细胞中有24条染色体,经过两次分裂后形成的新细胞中染色体的数量是(

题型:选择题

问题:

水稻的一个体细胞中有24条染色体,经过两次分裂后形成的新细胞中染色体的数量是(  )

A.6条

B.12条

C.24条

D.48条

考点:细胞的生长和分裂
题型:选择题

认为社会是一个具有自我适应能力的活的有机体的是()

A.冲突理论

B.社会唯名论

C.社会唯实论

D.功能主义

题型:选择题

用括号内所给动词的适当形式填空。

1. —Did Tom enjoy seeing his old friends yesterday ?

    —Yes, he did. He _______ ( not meet ) his old friends for a long time.

2. The detective promised to the victim that he               (catch) the robber as soon as possible.

3. —Do you know the places of interest in Wuxi ? 

    —Yes, it is the second time I _______ (visit ) the beautiful city.

4. He seemed to have difficulty _______ (control) his actions.

5. Would you please _______ (not disturb) him when he is reading English.

6. While I was watching a football match on TV, my twin brother _______ (pack) for the next day's trip

    to Qingdao.

7. The sports meeting they were looking forward to _______ ( hold) yesterday.

8. When you laugh or smile, your body _______ (relax).

题型:选择题

被监控机构逾期()个工作日未回复查询书的,运行监控人员应通过NOTES要求其管辖支行分管行长协助督办。

A.10

B.3

C.5

D.7

题型:选择题

拉弯模具的两端头应()

A.与工件相等

B.小于工件

C.适当加长

D.较大的长于工件

题型:选择题

外压薄壁容器的椭圆度越大,则容器的临界压力()。

A.不变

B.越大

C.越小

D.无影响

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