问题
选择题
Acid rain comes from _____.
A．the river
B．the water
C．the clouds
D．the forests
答案
答案：C
根据常识酸雨来自云中,故选C.
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Acid rain comes from _____.
A．the river
B．the water
C．the clouds
D．the forests
答案：C
根据常识酸雨来自云中,故选C.