问题
选择题
Leaves are found _______ all kinds of trees, but they differ greatly ______ size and shape.[ ]
A. in; on
B. in; from
C. on; by
D. on; in
答案
答案：D
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Leaves are found _______ all kinds of trees, but they differ greatly ______ size and shape.[ ]
A. in; on
B. in; from
C. on; by
D. on; in
答案：D