问题

Doctor Ray, as well as other scientists __________ trees for nearly 15 years, but they know only a little about them.

A:much
B:a few
C:few
D:a bit;

正确答案是：

同类题型

The movie covers all of Chinese history. It is _________ worth seeing again.

This dictionary me 18 yuan.

They put_______onthe government to lower taxes and give laid-off workers necessary health care.

__ warm at night, I would fill the woodstove, then set my alarm clock for midnight so I could refill it.

. China won 100 medals in the Beijing Olympic Games, which are almost ______ those of the Sydney Olympic Games.