A.±0.001 B.±0.002 C.±0.003 D.±0.004
A.尺長(zhǎng)改正數(shù)、溫度改正數(shù)、傾斜改正數(shù) B.視距改正數(shù)、溫度改正數(shù)、傾斜改正數(shù) C.尺長(zhǎng)改正數(shù)、溫度改正數(shù)、讀數(shù)改正數(shù) D.尺長(zhǎng)改正數(shù)、濕度改正數(shù)、溫度改正數(shù)
A.±10" B.±20" C.±40" D.±1"