Things are ________ on Mars ________ on Earth because of the different gravity. 

    A. much lighter; than that           B. much lighter; than those 

    C. not so light; as that             D. not so light; as those

     

    【答案】

    B

    【解析】

    試題分析:句意:由于不同的重力物品在火星上比在地球上輕得多。Things是復(fù)數(shù)形式,所以可用those代替。根據(jù)常識可知物品在火星上比在地球上輕,所以選B。

    考點:考查形容詞的比較級。

     

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