A.恢復(fù)交點(diǎn)樁 B.恢復(fù)轉(zhuǎn)點(diǎn)樁 C.恢復(fù)中樁
A.2km×2km B.1km×1km C.0.25km×0.25km
A.10% B.16% C.8% D.20%