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Scientists' involvement with sleep research

A. is driven by the potential of monetary gains to be made.
B. is a recent trend.
C. has been advanced with technological developments.
D. has relied on observations and assumptions about sleep being made.

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夫妻双方婚前财产及婚后所得财产全部归各自所有,并且各自行使管理、使用、收益和处分权的夫妻财产制度是()。

A. 分别财产制
B. 一般共同制
C. 部分共同制
D. 完全共同制

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劳动者不能胜任工作的，用人单位可单方面解除劳动合同。（）

A. 正确
B. 错误

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From this passage, we can find the following facts except that________.

A. the students at the Florida Virtual School hail from places in or out of the U. S.
B. the students at the online schools can take classes at any time
C. the online schools provide a variety of training from tennis to music
D. among the students of Florida Vitual School, there are some very advanced or backward ones.

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城市首位律是马克.杰斐逊早在1939年对国家城市规模分布规律的一种概括,指()。

A. 一个国家经济中心的分布规律
B. 一个国家的政治和文化中心的分布规律
C. 一个国家或区域的最大城市远大于区域第二位城市的规律性现象
D. 一个国家或区域的轻工业城市远大于区域的重工业城市的规律性现象

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Scientists' involvement with sleep research

A. is driven by the potential of monetary gains to be made. B. is a recent trend. C. has been advanced with technological developments. D. has relied on observations and assumptions about sleep being made.

夫妻双方婚前财产及婚后所得财产全部归各自所有,并且各自行使管理、使用、收益和处分权的夫妻财产制度是()。

劳动者不能胜任工作的，用人单位可单方面解除劳动合同。（）

From this passage, we can find the following facts except that________.

城市首位律是马克.杰斐逊早在1939年对国家城市规模分布规律的一种概括,指()。

A. is driven by the potential of monetary gains to be made.
B. is a recent trend.
C. has been advanced with technological developments.
D. has relied on observations and assumptions about sleep being made.