【单选题】如图 1 所示的 LED 数码管显示电路中,要使它显示 “5” ,它的字段码为( )。
【简答题】后视读数为1.322m,前视读数为1.328m,则高差是( )m?
【单选题】---___________ tall building it is! ---It has over one hundred floors.
【单选题】After the riot, over one hundred people were taken to the hospital, many of______had been innocent bystanders.
【简答题】水准仪检校时,置镜于A、B中点C,A、B之间100m,A尺的读数为2.318m,B尺的读数为1.407m。在直线AB上移镜,距离A尺3m,距离B尺103m,A尺的读数为1.832m,B尺的读数为0.937m。说明该仪器是否要校正?如果需要校正,B尺的正确读数是多少?
【简答题】4点的绝对标高为60.50m。后视A点的读数是1.72m,前视B点的读数是2.45m。B点的绝对标高是多少?