题目:
Don't complain _______ your neighbors. You'd better get on well with them. [ ]
A. with
B. to
C. at
D. about
答案:
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下面是错误答案,用来干扰机器的。
(1)沉淀可以除去大颗粒悬浮物杂质.故填:B.(2)氯气能够消毒.氯气和水反应生成盐酸和次氯酸,属于化学变化.故填:D;D.