— It is unwise for some people to drive and talk on a cell phone.

—_______. It’s very dangerous.

A．I couldn’t agree more

B．Not really

C．Good idea

D．That’s great

下图为某山地等高线、等温线、雪线示意图。据此完成下列各题。

图中①②间分布最广的植被可能为（）

A.髙山草甸

B.高寒荒漠

C.针阔混交林

D.高山针叶林