单项选择题

The microscope enables scientists to distinguish a(n) () number and variety of bacteri.

A. selected
B. incredible
C. verifiable
D. unavoidable

<上一题目录下一题>

热门试题

单项选择题

Since the accident he has walked with a ().

A．slope
B．limp
C．lame
D．strain

单项选择题

We have to think very carefully before we take any action, because it's a very () situation we are in.

A．ideal
B．favourable
C．good
D．severe

相关试题