具有足够的强度、整体性、均一性、（）、耐久性是各类水工建筑物对地基基础的基本要求。
A．稳定性
B．抗渗性
C．抗冻性
D．可塑性
参考答案：B
—_________ I have a look at your new MP3?
Certainly. Here you are.
A．Must
B． Need
C．May
D．Would
We thought of selling this old furniture, but we've decided to ____ it. It might be valuable.
A. hold on to
B. keep up with
C. turn to
D. look after
