A.三角網(wǎng) B.邊角網(wǎng) C.GPS網(wǎng) D.三邊網(wǎng)
A.>10 B.5~10 C.<5 D.<0.1
A.經(jīng)緯儀 B.全站儀 C.水準(zhǔn)儀 D.鋼、皮尺