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

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

选项 A、inclined to
B、subjected to
C、prone to
D、bound to

答案B

解析 考查词组辨析。be subjected to(sth.)意为“接受,经受,遭受”,符合题意及用法要求。be inclined to (do sth.)意为“易于,倾向于”,如:I am inclined to be ill after eating fish.(我吃完鱼后就想吐。)be prone to(sth./do sth.)意为“有……的倾向,易于”,如:Children of poor health are very prone to colds in winter. (体弱的孩子在冬天易患感冒。)be bound to(do sth.)意为“一定会,注定”,如:It’s bound to rain soon.(不久就会下雨。)
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