It was one of those days when it looked at first something interesting could happen, but then later, when you didn't expect anything, almost everything happened.

A．nothing

B．anything

C．everything

D．all things

碳氧比测井是利用中子与地层岩石的（）。

A.非弹性散射

B.弹性散射

C.扩散和被俘获