448,516,639,347,178,( )A.163B.134C.785D.896
448,516,639,347,178,( )
A.163
B.134
C.785
D.896
相关考题:
已知热流体由300℃冷却到150℃,而冷流体由50℃加热到100℃,试计算逆流时的对数平均温差。A.124 ℃B.134 ℃C.144℃D.154℃
448,516,639,347,178,( )
A.163
B.134
C.785
D.896