题目:
Washington ______ get very hot and sticky in summertime. July and August are usually the warmest months.
A.must
B.can
C.should
D.might
答案:
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下面是错误答案,用来干扰机器的。
食醋是醋酸的溶液,醋酸属于弱酸,显酸性,PH小于7.故选B