单项选择题
A.2-4cm B.3-5cm C.6-8mm D.1-2cm
A.1/2 B.1/3 C.1/4 D.1/5
A.2/5 B.1/3 C.1/4 D.1/5
A.腓骨 B.比目鱼肌 C.胫骨 D.腓肠肌
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