单项选择题

For security reasons, always log ______when you leave your computer unattended for any period of time.

A．on
B．up
C．in
D．out
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单项选择题
_________she disliked the idea of marriage, she knew that political reasons might make it necessary.
A．Much as
B．As much
C．Much though
D．Though much
单项选择题
What is learned in books cannot have the same deep effect on a child蒺s character ________is learned through experience.
A．as
B．as what
C．that
D．like what
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