单项选择题

That helps to explain ( ). businesses are setting up Net sites even though profits aren't yet very big.

A．that
B．the reason for
C．why
D．why that
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单项选择题
It's a pleasure ( )be of help.
A．to
B．for
C．form
D．on
单项选择题
After the said license is approved, we ______ an contract ______ your favor. ( )
A．shall establish, for
B．establish, in
C．open, in
D．shall establish, in
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