◎ 题干
Then Wang Ping flashed a switch on a computer screen,and a table and some chairs rose from under the floor       by magic.
A.only if     B.even ifC.as ifD.what if
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Then Wang Ping flashed a switch on a computer screen,and a table and some chairs rose from under the floorby magic.A.only ifB.even ifC.as ifD.what if…”主要考查了你对  【并列连词】【从属连词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。