用稳定试井资料求取二项式产气方程不需要的数据是（）。
A.Pf2
B.Pwf2
C.qg
D.lgqg
参考答案：D
Tom ______ to me that the rooster which _______ in the corner _______ an egg.
A．lied; lay; had lain
B．lied; laid; had lain
C．lied; lay; had laid
D．lay; lied; had laid
在相同情况下，消费者需求曲线较市场需求曲线陡峭
