第7题: [单项选择]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 参考答案:B 答案解析:短语be subjected to 作“受支配,从属于;可以……的,常遭受”讲。仍是介词,后可跟名词或动名词,作介词宾语,例如:Man tends to increase at a greater r