甲图中正午太阳的直射点位于( )
A.北回归线
B.南回归线
C.赤道
D.南极圈
读图可得,甲图中南北半球的昼夜平分,该图所示的是春分日或秋分日,太阳直射赤道.
故选:C.
Peter phoned to say they'd arrived safely, so put your mind ________.[ ]
A. with ease
B. by heart
C. in peace
D. at ease
起升机构制动行程过大,停车后下滑得太多的情况称为()
A、溜钩
B、稳钩
C、运行稳钩