私人不愿充分提供公 * * 品是因为无法补偿()
A、销售成本
B、供给成本
C、劳动成本
D、生产成本
参考答案:B
The meeting achieved _____ a short statement, leaving many details to be worked out later. [ ]
A. other than
B. anything but
C. little more than
D. more or less
双排落地的扣件式钢管外脚手架,必须设置纵横向扫地杆。纵向扫地杆采用直角扣件固定在距底座上皮不大于( )mm处的立杆上,横向扫地杆固定在纵向扫地杆的下部。
A.200
B.300
C.350
D.400