It's 7 o'clock. Tom _____ dinner at home.[ ]
A. is having
B. has
C. have
答案：A
下列不属于商品房计价方式的是( )方式。
A．按幢计价
B．按套计价
C．按套内建筑面积计价
D．按建筑面积计价
设备运转前应做哪些准备工作？
