◎ 题干
—Susan, what are the advantages of MP5 players?
—Mom, they are smaller and lighter ______ they can be carried very easily.
A.unless B.if C.until D.so that
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“—Susan, what are the advantages of MP5 players?—Mom, they are smaller and lighter ______ they can be carried very easily.A.unlessB.if C.untilD.so that…”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。