单项选择题

Astronauts are ______ all kinds of tests before they are actually sent up in a spacecraft.

[A] inclined to
[B] subjected to
[C] prone to
[D] bound to
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单项选择题
The new cut in interest rate ______ romote domestic investment.
[A] means to
[B] directs toward
[C] is meant to
[D] leads to
单项选择题
After having gone ______ far along the way to his academic pursuit, Gorge did not want to give up fruitlessly.
[A] that
[B] such
[C] much
[D] enough
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