导致机车车辆正好从没有开通的道岔上强行经过的进一步原因有三,分别是:()。
A.信号故障
B.误认信号
C.机车车辆溜逸
D.人为地强行通过
参考答案:B, C, D
Tom decided his homework at school. [ ]
A. to do
B. do
C. doing
D. does
先天不足,脾肾双亏可见()
A.横目斜视
B.目睛微定
C.昏睡露睛
D.双睑下垂
E.单睑下垂