问题
选择题
A crab has ____________ legs and a duck has ____________ legs.[ ]
A. four, two
B. two, two
C. two, four
D. eight, two
答案
答案：D
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A crab has ____________ legs and a duck has ____________ legs.[ ]
A. four, two
B. two, two
C. two, four
D. eight, two
答案：D