【单选题】利用水准仪测量隧道洞顶水准点高程时,已知拱顶点高程为35m,若已知点水准尺读数为1.515m,待测点水准尺读数为2.015m,则待测点高程为()
【多选题】(多选题)如全陪带领旅游团到北京地区旅游时,应事先准备的专业知识有( )。
【判断题】优先编码器只对同时输入的信号中的优先级别最高的一个信号编码
【单选题】利用水准仪测量隧道洞顶水准点高程时,已知拱顶点高程为35m,若已知点水准尺读数为1.515m,隧道地面上待测点水准尺读数为2.015m,则待测点高程为()
【单选题】Under the National Health Service, British citizens ______.
A.
are all registered with a general practitioner
B.
do not need to buy private health insurance
C.
can only go to see a general practitioner
D.
cannot call in a general practitioner
【单选题】Dr. Baum, a representative of the Council, visited one particular British national park because _______.
A.
he was presenting the park with a diploma for its achievements
B.
he was concerned about how the park was being run
C.
it was the only national park of its kind in Europe
D.
it was the only park which had ever received a diploma from the Council
【判断题】优先编码器只对同时输入的信号中优先级别最高的一个信号编码。
【单选题】优先编码器只对同时输入的信号中的优先级别( )的一个信号编码
【单选题】利用水准仪测量隧道洞顶水准点高程时,已知地面点高程为35m,若已知点水准尺读数为1.515m,待测点水准尺读数为2.015m,则待测点高程为()
【单选题】下列关于文件系统的描述中,正确的是( )。