题目

等质量的①CH4、②H2、③HCl、④SO2,在标准状况下所占体积由大到小排列的顺序是(   )      A、②>①>③>④              B、④>③>①>②       C、③>②>④>①              D、①>④>②>③  答案:A He has some milk and bread ________ breakfast every day. [  ] A.as B.with C.at D.for
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