单项选择题

The Space Age _________ in October 1957 when the first artificial satellite was launched by the So- viet Union.

A．initiated
B．originated
C．embarked
D．commenced
<上一题 目录 下一题>
热门 试题

单项选择题
The old gentleman was a very _________ looking person, with grey hair and gold spectacles.
A．respectful
B．respected
C．respective
D．respectable
单项选择题
She remains confident and _________ untroubled by our present problems.
A．indefinitely
B．infinitely
C．optimistically
D．seemingly
相关试题