单项选择题

______ success calls for hard work is not very clear to every student in our college.

A．That
B．Which
C．What
D．When
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单项选择题
It is moved that the experiment ______ right now.
A．is reconducted
B．will be reconducted
C．be reconducted
D．ought to be reconducted
单项选择题
______ the rule will be abolished or not hasn t been made public.
A．That
B．If
C．Whether
D．Weather
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