单项选择题

E-business is partly driven by the consumer demand side( ) which consumers use the Internet for their purchases.

A. on
B. in
C. at
D. with
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单项选择题
What we care is ( ).
A. not price but quality
B. price but not quality
C. but quality not price
D. quality nor price
单项选择题
( ) our good relations, we would not have quoted so low a price.
A. But for
B. For
C. If not
D. Except for
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