建立进路时,某道岔在转换途中,轨道供电突然停电使GDJ↓,则该道岔()。
A.继续转换到底
B.停止转换
C.自动转回原来位置
参考答案:A
— Are you really through with your work assigned the day before yesterday?
— , I've only just begun .[ ]
A. On the contrary
B. On the other hand
C. Right you are
D. Never mind
分娩时可经接触母血或经粪口途径感染新生儿的是()
A.甲型病毒性肝炎
B.乙型病毒性肝炎
C.丙型病毒性肝炎
D.丁型病毒性肝炎
E.戊型病毒性肝炎