下列说法不正确的是( )
A.地图的三要素是方向、比例尺、图例和注记
B.比例尺是图上距离与实地距离之比
C.有指向标的地图,指向标指向正南
D.看地图时,要先熟悉图例和注记
答案:C
The mother rushed to the hospital_____she heard her son was injured in a traffic accident.
A.in a minute
B.for a moment
C.at the moment
D.the moment
简述25K型客车转向架列检作业的检查范围?