题目

 Only after they had discussed the matter for a few hoursa decision. A. they reached                     B. did they reach C. they reach                           D. do they reach 答案:B中华文化源远流长、博大精深。从化学的视角看,下列理解不正确的是( )A. “千淘万漉虽辛苦,吹尽黄沙始到金”中“淘”“漉”相当于分离提纯操作中的“过滤”B. 司母戊鼎属青铜制品,是我国古代科技光辉成就的代表之一C. 瓷器(China)属硅酸盐产品,China一词又指“瓷器”,这反映了在西方人眼中中国作为“瓷器故乡”的形象D. 侯德榜是我国化学工业的奠基人,主要成就: 侯氏制碱法,该碱指的是烧碱
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