单项选择题

It is obvious that these small businesses are ______ need of technical support.

A. in
B. on
C. with
D. to
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单项选择题
Is it his left kidney(肾) ______ the young man donated(捐献) to his mother
A. which
B. that
C. what
D. where
单项选择题
I'd ______ the operation unless it is absolutely necessary.
A. rather not have
B. rather not to have
C. not rather had
D. rather not having
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