◎ 题干
Using bicycles ______ greatly to people’s physical fitness as well as easing traffic jams.
A.substitutesB.attributesC.distributesD.contributes
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“Using bicycles ______ greatly to people’s physical fitness as well as easing traffic jams. A.substitutesB.attributesC.distributesD.contributes…”主要考查了你对  【动词短语】【动词】  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。