建筑产品的固定性决定了建筑施工的（）
A.流动性
B.交叉性
C.灵活性
D.一致性
参考答案：A
Many old men prefer __________ in a peaceful countryside.
A．to live
B．living
C．live
D．lived
I am in _______charge of the class which was in __________charge of my wife.
A．不填；the
B．不填；不填
C．the; 不填
D．the; the
