--Look! The girl passing by must be a newcomer!

---No, she _______ be a newcomer. I’m sure it is at least one year since she came to live here.

A．shouldn’t

B．can’t

C．mustn’t

D．oughtn’t

按燃料来分，汽车刹车可分为（）。

A.油刹

B.碟刹

C.气刹

D.鼓刹