A.對(duì)中、整平、讀數(shù)B.對(duì)中、整平、定向、讀數(shù)C.對(duì)中、整平、量?jī)x器高、定向、讀數(shù)D.對(duì)中、整平、測(cè)指標(biāo)差、量?jī)x器高、定向、讀數(shù)
A.地物注記B.比例符號(hào)C.半比例符號(hào)D.非比例符號(hào)
A.60mB.80mC.100mD.160m