下列（）点属于典型相渗曲线“五点”。
A.束缚水饱和度点
B.原始含水饱和度点
C.同渗点
D.剩余油饱和度点
E.残余油饱和度点
参考答案：A, C, E
--- Are you going to take part in the writing competition?
---________. It’s too good a chance to miss.
A．That’s for sure.
B．Never mind
C．Cheer up
D．My pleasure
竞技水平
