单项选择题

The scientist has made quite a few discoveries, ______ of great importance to the whole world.

A．which I think they are
B．which I think are
C．I think which are
D．that I think they are
<上一题 目录 下一题>
热门 试题

单项选择题
America will never again have as a nation the spirit of adventure as it ______ before the West was settled.
A．has
B．did
C．was
D．would
单项选择题
The background music in an assembly line is designed ______.
A．being not listened to
B．not being listened to
C．to be not listened to
D．not to be listened to
相关试题