单项选择题

A．on
B．in
C．at
D．for
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单项选择题
A．promoteB．destroyC．enhanceD．advocate
A．promote
B．destroy
C．enhance
D．advocate
单项选择题
A．The man should study very slowly.B．The man should try to understand the picture first.C．The man should mark time.D．Not to try to learn too much too fast.
A．The man should study very slowly.
B．The man should try to understand the picture first.
C．The man should mark time.
D．Not to try to learn too much too fast.
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