单项选择题

The United Nations Conference on Drug Abuse, which took place earlier this year in Vienna, was a very______ meeting.

A．productive
B．overwhelming
C．compulsory
D．protective
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单项选择题
Winds most often come from the coast, and are ______ dmp and not too cold.
A．somewhat
B．somehow
C．nevertheless
D．then
单项选择题
Crisis would be the fight term to describe the ______ in many animal species.
A．minimization
B．restriction
C．descent
D．decline
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