A.起點(diǎn)坐標(biāo)值 B.終點(diǎn)坐標(biāo)值 C.圓心坐標(biāo)相對(duì)于起點(diǎn)的
A.48mm B.52mm C.50mm
A.60轉(zhuǎn) B.120轉(zhuǎn) C.240轉(zhuǎn) D.480轉(zhuǎn)