This also keeps the air，soil，water crops chemicals.A. out ofB. out fromC. free ofD. rid of

发布时间：2020-08-17 07:34:15

This also keeps the air，soil，water crops     chemicals.
A. out of
B. out from
C. free of
D. rid of

网友回答

A. out of
B. out from
(答案→)C. free of
D. rid of
解析：固定搭配free of…免受…的伤害；句义：这个总是能够让空气，土壤和水生物免受化学物质的伤害。根据句义说明C正确。
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