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    Leaves are found on all kinds of trees, but they differ greatly _______ size and shape.


    1. A.
      on
    2. B.
      from
    3. C.
      by
    4. D.
      in
    D
    思路分析：differ from与……不同；differ in…在…方面不同，故选D。
    点评:考查动词短语，偏易。
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