103. The activity is called saving the earth which refers to more reduction of caused to

发布时间：2020-08-16 07:08:11


103. The activity is called saving the earth which refers to more reduction of      caused to the world by freon (氟里昂)of refrigerators.
A. hurt
B. harm
C. destroy
D. Damage

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A. hurt
B. harm
C. destroy
D. Damage
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