The restriction is somewhat vague and ________ cannot prevent all violations.
The restriction is somewhat vague and ________ cannot prevent all violations.
A、that
B、nevertheless
C、therefore
D、whether
【正确答案】:C
【题目解析】:that引导从句,前面有and,表并列,说明后面不是从句;nevertheless然而;therefore因此;whether是否
句意:这个限制有些模糊,因此不能防止所有的违规。
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