27. People have become aware the fact that carbon dioxide, poison to the environment, cont
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解决时间 2021-04-06 17:46
- 提问者网友：情歌越听越心酸
- 2021-04-05 18:45
27. People have become aware the fact that carbon dioxide, poison to the environment, contributes air pollution.
A. of, to
B. /, to
C. of, of
D. of, for
最佳答案
- 五星知识达人网友：狂恋
- 2021-04-05 19:14
(答案→)A. of, toB. /, toC. of, ofD. of, for解析：可联系答.案.网客服索取。
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- 1楼网友：痴妹与他
- 2021-04-05 20:41
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