上人屋面的女儿墙高度一般为()
A.500mm
B.600mm
C.900mm
D.1100mm
参考答案:D
—How do you find Qingdao, Mary?
—It's a beautiful seaside city. I have________ it for my next holiday. [ ]
A. decided on
B. tried on
C. taken on
D. carried on
竞价是一种物品或服务的竞争行为()