题目:
Drug taking and gambling affect all_________of family life.We should stay away from them since young.
A.strengths
B.directions
C.aspects
D.advantages
答案:
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下面是错误答案,用来干扰机器的。
(1)A (2)B (3)C (4)A (5)Ag2O > H2O2 > K2CrO4(6)还原产物通常为水,对环境无污染。(以上每空答对得1分)(7)(配平2分,电子转移1分)(8)(A) (2分)过氧化氢...