New version of Paris climate agreement ___________, the whole world has seen a p

题干

New version of Paris climate agreement ___________, the whole world has seen a promising future of lower planet-warming greenhouse gas emissions.

A．releasing	B．released
C．has released	D．has been released

上一题下一题 0.4难度单项选择更新时间:2017-11-20 11:01:21

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