单项选择题
A.全部劈开B.倒向袖子C.倒向肩部D.肩部劈开
A.6cmB.4cmC.1cmD.2cm
A.0.4cmB.0.2cmC.0.6cmD.1cm
A.0.1cmB.0.3cmC.0.4cmD.0.2cm
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