在铁路实际工作中,通常把通过能力分为()能力、()能力和需要通过能力三个不同的概念。
参考答案:设计通过;现有通过
--- The party is so great!
--- Yes, but Johnson, we’ve got to go home. ______
--- Thank you. See you later.
A.Enjoy yourself!
B.See you.
C.I’m very sorry.
D.What about you?