单项选择题

Another natural ______ that contributes to the welfare of tile country is water.

A．source
B．mineral
C．power
D．resource
<上一题 目录 下一题>
热门 试题

单项选择题
He would never forget the occasions in the past ______ he had been bullied and humiliated.
A．that
B．before
C．which
D．when
单项选择题
The detective was greeted with an unpleasant smell of ______ air when he stepped into the long locked room.
A．stagnant
B．misty
C．fragrant
D．stale
相关试题