发动机自动再点火功能提供什么保护()
A.慢车保护
B.防冰保护
C.熄火保护
D.上述B和C
参考答案:C
– I’m sorry for being late. I should have phoned you earlier.
– _____. I’ve just arrived.
A.That’s no trouble.
B.You are welcome.
C.That’s all right.
D.You can never tell.
导曲线指道岔中连接转辙部分和()的曲线轨道。
A、辙叉
B、基本轨
C、辙叉部分
D、护轮轨