U1 Conversation 5[音频]
A. Bob remembered all his lines.
Bob performed very naturally.
C. Bob should be proud of himself.
D. Bob should have performed better.
已知A点高程为111.111,两点间高差为0.222,则B点高程是
A. 111.333
B. 110.889
C. 110
D. 120
水准测量的路线包括有
A. 复合水准路线
B. 附和水准路线
C. 闭合水准路线
D. 支水准路线
下列不属于经纬仪的仪器构成的是
A. 水准器
B. 基座
C. 水平度盘
D. 三脚架