LXJ落下且YXJ吸起时,进站信号机点红白灯。
参考答案:对
迷路炎()
A.药物副作用
B.反射性呕吐
C.神经官能症
D.中枢性呕吐
E.前庭障碍性呕吐
A vessel with a large GM will().
A.have a small amplitude of roll in heavy weather
B.tend to ship water on deck in heavy weather
C.be subject to severe racking stresses
D.be less likely to have cargo shift