—.         today?

—It’s fine.

A．What can I do for you

B．What’s the weather like

C．Who is on duty

D．How are you

抹带接口应表面平整密实，不得有（）等现象。

A.间断和裂缝、空鼓

B.漏浆

C.厚薄不均

D.保护层过厚