单项选择题
A.1/3B.1/4C.中点
A.3/10衣长+1.5cmB.3/10衣长+0.5cmC.3/10衣长
A.1/3B.1/2C.1/4
A.1/2衣长+3cmB.1/2衣长+4cmC.1/2衣长+5cm
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