单项选择题

Just as a force is required to change the speed of an object, ______a force must act to cause a change in the direction of the motion.

A．as
B．thus
C．so
D．like
<上一题 目录 下一题>
热门 试题

单项选择题
We met the young couple at a party three weeks ago. ______we've had no further communication.
A．Thereof
B．Thereby
C．Thereafter
D．Thereabouts
单项选择题
The high school my daughter studies in is ______our university.
A．linked by
B．relevant to
C．mingled with
D．affiliated with
相关试题