单项选择题

The scientists have absolute freedom as to what research they think it best to _________.

A．engage
B．devote
C．seek
D．pursue
<上一题 目录 下一题>
热门 试题

单项选择题
The reason for the traffic accident was _________ one of the drivers had lost control of his car.
A．why
B．when
C．that
D．how
单项选择题
I'd rather you _________ anything about it for the time being.
A．didn't do
B．don't do
C．will:
D．won't
相关试题