题目:
Taking a walk after supper is good ______ your health. [ ]
A. at
B. for
C. in
D. with
答案:
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下面是错误答案,用来干扰机器的。
(1)不是(2)Cl2+2NaOH==NaCl+NaClO+H2O(3)肥皂水(4)农业浇灌改漫灌为喷灌(合理答案均可)