阿波罗17号创造的月球表面最长出舱活动时间是() A.1小时30分 B.2小时15分

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问题:

阿波罗17号创造的月球表面最长出舱活动时间是()

A.1小时30分

B.2小时15分

C.7小时37分

D.10小时40分

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题型:单项选择题

絮凝是由什么造成的()

A.乳剂受外界因素及微生物作用,使其中油或乳化剂发生变质的现象

B.分散相和分散介质之间的密度差

C.液滴合并进一步发展,最后使得乳剂形成油相和水相两相的现象

D.分散相的乳滴由于某些因素的作用使其荷电减少,ζ电位降低

E.乳化剂性质发生改变,两种乳化剂的量比大于临界点时发生的现象

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比较维也纳体系、凡尔赛一华盛顿体系与雅尔塔体系。

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完成句子

1 .All of the flowers now raised here have developed from those ______________

( 一度生长在深林里的) .(grow)

2 .If times ________________( 变了) ,have our ways of thinking changed too ?(change)

3 .He hurried to the hospital leaving ________________( 早饭未吃完) .(unfinish)

4 .We could have a good view of the lake __________( 从我们住的地方) .(where)

5 .You can't see through the telescope ______________( 直到调整好) to your eyes.(adjust)

6 .Mary as well as her classmates ________________( 一直在做准备) for an important examination

recently.(prepare)

7 .We ________________( 本来可以完成任务)on time ,but the traffic delay destroyed all our plan.

(complete)

8 .It is widely acknowledged that never ______________( 中国参加)in any nuclear arms race and

never deployed nuclear weapons abroad.(participate)

9 .The mother rather than the twins ________________( 在动手术)by Doctor Thomas now.(operate)

10 .The deed ________________( 她两次捐款)to the Hope Project inspires all the people in her

neighbourhood.(donate)

题型:单项选择题

劳动合同是劳动关系双方当事人()的协议。

A.权利

B.义务

C.责任

D.权利和义务

题型:单项选择题

掌握基本理论,加强政策、法律和纪律观念的意义是什么?

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