单项选择题

The public and authorities are particularly concerned about the ______ from the unclear power stations.

A．extracts
B．injections
C．discharges
D．drainage
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单项选择题
The television programs presented ______ of some legendary figures who had made a difference in European history.
A．directory
B．profiles
C．panorama
D．commentary
单项选择题
The experts reached ______ about the causes of global warming in the international conference.
A．consensus
B．pledge
C．commitment
D．racket
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