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单项选择题

The word "yield" in paragraph 4 is closest in meaning to ______.

A．give up.
B．produce.
C．release.
D．unpack.

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热门试题

单项选择题It can be inferred from the passage that the temptation which the Bush administration has increasingly succumbed to comes from ______.

A．Washington's inability to run a global order driven by military action and the fear of terror- ism.
B．Washington's vacillating between appealing to law and undermining it.
C．a misunderstanding of the consequences of global interdependence and the character of democracy.
D．American empire's unsustainablility.

单项选择题The author compare the ocean bottom to a frontier in paragraph 1 because it______.

A．is a quite promising place.
B．is out of the understanding of many scientists.
C．attracts courageous explorers.
D．is an unknown research area to the scientists.