什么是导曲线支距?怎样量取?
参考答案:
导曲线支距按道岔标准图或设计图设置,在导曲轨与基本轨工作边之间测量。(修规3.9.3条)
The English play ____ my students acted at the New Year’s party was a great success.
A.for which
B.at which
C.in which
D.on which
细菌性肝脓肿的并发症有()
A.膈下脓肿
B.上消化道出血
C.急性腹膜炎
D.脓胸
E.心包脓肿