A.85.76m,128.53m B.14.24m,-28.53m C.-14.24m,28.53m D.-85.76m,-128.53m
A.-0.550 B.45.450 C.46.550 D.46.000
A.絕對值相等,符號相同 B.絕對值不等,符號相反 C.絕對值相等,符號相反 D.絕對值不等,符號相同