单项选择题

This matter is of ______ importance.

A．second
B．secure
C．safe
D．secondary
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单项选择题
It is because she is too inexperienced ______ she does not know how to deal with the situation.
A．so
B．that
C．so that
D．which
单项选择题
You will ______ in hospital if you work so hard.
A．die out
B．end up
C．turn off
D．give up
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