怎样辨别正知正见？

The girls______a game called Bomb happily when the teacher suddenly entered the classroom.

A．played

B．were playing

C．are playing

D．had played

2.02m³=（     ）dm³            3820mL=（    ）L=（    ）dm³

此时决定是否急诊透析的指征为

A．双下肢肿胀程度

B．有无浮肿

C．有无心衰

D．有无贫血

E．有无发热

何为磁滞损耗？

WindowsXP家族中，运行于客户端的通常是______。

A．Windows XP Server

B．Windows XP Professional

C．Windows XP Daeacenter Server

D．Windows XP Advanced Server