A.選點 B.測角 C.量邊 D.閉合導(dǎo)線的計算
A.1:5000,1:2000,1:1000,1:500 B.1:10000,1:5000,1:2000,1:1000 C.1:1000,1:10000,1:5000,1:2000 D.1:2000,1:1000,1:500,1:100
A.正 B.負 C.相同 D.相反