单项选择题
A.(0,0)B.(0,0.4)C.(0.4,0)D.(0.4,0.4)
A.4:1或6:1B.1:2或2:1C.3:5或5:8D.1:1.618
A.前中心线B.重心线C.腰线D.肩线
A.前B.后C.旁D.侧
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