华南区域港口群包括?()
①香港
②珠海
③深圳
④广州
A.①②③
B.①②④
C.②③④
D.①③④
参考答案:D
---Everybody is playing on the playground. Can I join them , Miss Lin?
--- __________________ Not until you have completed the Maths exercises.
A.Why not?
B.Will you?
C.I hope so.
D.I’m afraid not.
成本管理的成本分类中不包括()
A、硬件成本
B、软件成本
C、人员成本
D、机会成本