—Perhaps，what I steal(偷) on the Happy Farm is not vegetables．That is “loneliness”．

—        This year “loneliness” is very popular．

A．I don’t think so.

B．I quite agree with you.

C．That’s a good idea.

D．I’m not sure if you are right.

喷出岩常具有下列哪种构造（）

A、流动构造

B、气孔构造

C、层理构造

D、片理构造