A.±10 B.±5 C.±15 D.±20
A.±0.1m B.±0.1cm C.±0.1mm
A.恢復(fù)交點(diǎn)樁 B.恢復(fù)轉(zhuǎn)點(diǎn)樁 C.恢復(fù)中樁