单项选择题

It is still not clear what ______ a series of argument between them.

A．contributed
B．marked
C．ignited
D．triggered
<上一题 目录 下一题>
热门 试题

单项选择题
Concerned people want to ______ the risk of developing cancer.
A．take
B．decrease
C．minimize
D．run
单项选择题
Because of a recent obstacle in production, sales have dropped and accordingly profits have ______.
A．declined
B．increased
C．broken
D．promoted
相关试题