单项选择题

A．Whether it can be detected and checked.
B．Whether it will lead to widespread food shortage.
C．Whether global warming will speed up in the future.
D．Whether it will affect their own lives.
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问答题
Wang Qun holds that the sexual behavior in universities are_________________.
单项选择题
A．They were worn out.B．They were dirty.C．They were of a dull colour.D．They were out of style.
A．They were worn out.
B．They were dirty.
C．They were of a dull colour.
D．They were out of style.
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