单项选择题

In his ______ to further his knowledge of the universe, man has now begun to explore space.

A．attempt
B．expedition
C．trial
D．chase
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单项选择题
Among the more common scenes are those in the courtyards of apartment buildings where the children play, while their elders gossip on benches, and young people congregate to listen to music.
A．assemble
B．captivate
C．engage
D．fascinate
单项选择题
It was all agreed that the first problem the new government would have to ______ was unemployment.
A．grip
B．tackle
C．discern
D．manipulate
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