理想气体的压强系数为（）。
A.P
B.T
C.V
D.1/T
参考答案：D
— I usually go to school by bus.
— Why not going there on foot?
A. trying B. try C. to try
某工业槽长L＝2m，宽B＝2m，槽内溶液温度t＝40℃，采用吹吸式罩。则吹吸式罩的吹风量为( )m3/s。
A．0.28 B．0.36C．0.56 D．0.78
