单选题：HIV can be safely used to cure cancer only if the deadly gen

题目内容：

HIV can be safely used to cure cancer only if the deadly genes have been removed． A．Right
B．Wrong
C．Not mentioned

参考答案：

答案解析：

However bad the situation is，the majority is unwilling to ri

However bad the situation is，the majority is unwilling to risk change．A．reluctan

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He talks tough but has a tender heart．A．heavy B．mild C．kind D．wild

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You have to be patient if you want to sustain your position．A．maintain B．establi

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The room is dim and quiet．A．tiny B．pleasant C．dark D．agreeable

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They agreed to modify their policy．A．clarify B．change C．define D．develop

分类：卫生类题型：单选题