三角高程测量主要通过测量两点间的距离和竖直角,采用三角函数公式计算两点间高差的方法来推算待定点的高程。
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磁盘机的功能是()a.存贮采集来的扫描数据b.存贮处理后的图像数据c.存贮操作程序软件d.存贮诊断软件e.存贮CT机特性参数
A. a,b,c
B. c,d
C. a,c,d,e
D. b,c,e
E. a~e全部
车站发现装载液化气罐车无人押运或达不到押运人数要求时,应立即(),并用电报通知发站转告拖运人速派人解决。(B、3、X)[05-00-03-01][020102]
A. 停车
B. 限速
C. 处理
D. 甩下
A basic TCP/IP configuration on the system has just been completed. A remote system can be pinged by IP address but not by hostname. Which of the following actions should be performed next in an effort to successfully ping using the hostname?()
A. Check routing
B. Check inetd.conf
Check /etc/resolv.conf
D. Check interface with ifconfig
下列哪些可以成为进入船舶的通道()。 Ⅰ.舷梯、引水梯、跳板; Ⅱ.舷窗、舷门; Ⅲ.系泊缆绳和锚链; Ⅳ.起货设备与升降装置; Ⅴ.输油管。
A. Ⅰ~Ⅴ
B. Ⅰ、Ⅱ、Ⅲ、Ⅴ
C. Ⅰ~Ⅲ
D. Ⅰ、Ⅲ、Ⅳ、Ⅴ