常用于表示微粉流动性的术语有( )
A．比表面积
B．堆密度
C．孔隙率
D．流速
E．休止角
参考答案：D,E
ADSL的MODEM上“DSL”接口连接外置分离器的哪个接口（）.
A、MODEM
B、PHONE
C、LINE
D、ADSL
— Alexis, would you please lend me your car?
— _____.[ ]
A. That's right
B. No, thanks
C. Of course not
D. Sure, here is the key
