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【单选题】The Exploding Lakes of Cameroon What comes to mind when youthink of a lake? You probably imagine a pretty scene with bue water, brds, and fish. FOr the people in the northwestern Cameroon, however,the...
A.
Water will flow down the hills.
B.
Poisonous gases will bereleased suddenly.
C.
A strong wind will rise from the lakes.
D.
The volcanoes will come to life.
【单选题】任何一个人，如果不努力学习新东西，都会被时代所淘汰。Any person ________ refuses to learn new things will be left behind the times.
A.
whoever
B.
which
C.
who
D.
if