A.K30、K、Evd B.K30、n C.K30、K D.K30、K、Ev2
A.±5cm B.±10cm C.±15cm D.±20cm
A.60° B.80° C.180° D.90°
A.水壓計(jì) B.多點(diǎn)位移計(jì) C.全站儀 D.壓力盒
A.2% B.-10% C.-5% D.5%