防静电活动地板的面板主要采用( )等材料。
A．铝合金复合石棉塑料贴板
B．镀锌钢板
C．铸铝合金面板
D．塑料地板
E．铸铝板
参考答案：A,C,D
— I was wondering if you could lend me some more money?
— Sorry, I’ve got _____ at hand myself. You know the MP4 player cost me all I had just now.
A．neither
B．nothing
C．none
D．few
M8的4T法兰螺栓，其装配扭矩是（）。
