单项选择题

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

A．attempt
B．expedition
C．trial
D．chase
<上一题 目录 下一题>
热门 试题

单项选择题
When the new assembly line is complete, the factory will turn ______ one thousand cars per day.
A．in
B．off
C．out
D．over
单项选择题
We can rely on William to carry out this mission, for his judgment is always ______.
A．inexplicable
B．healthy
C．sound
D．straight
相关试题