单项选择题

The （） of human knowledge are being pushed further.

A．boundaries
B．borders
C．limits
D．edges

<上一题 目录 下一题>
热门 试题

单项选择题
The police have asked for the （） of the public in tracking the whereabouts of the escaped criminals.

A．partnership
B．union
C．association
D．co-operation
单项选择题
He soon made a （） for himself on the stage.

A．popularity
B．fame
C．prominence
D．reputation
相关试题