单项选择题

They tried to restrict access to () they believed to be dangerous areas.

A. which
B. what
C. that
D. everywhere

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单项选择题

() is announced in the papers, our country has launched a large-scale movement against smuggling and fraudulent activities in foreign currency exchange deals.

A. What
B. As
C. Which
D. That

单项选择题

A.which
B.them
C.those
D.whom

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