单项选择题

The firm's customers in all areas concerned are ______ more information in electronic form.

A. responding
B. reacting
C. adapting
D. requiring
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单项选择题
He put his address on the packages so people would know ______ to go if they had questions.
A. where
B. what
C. which
D. that
单项选择题
We must do something to protect consumers against ______ advertising increasing recently.
A. effective
B. lasting
C. purposeful
D. fraudulent
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