–It is said that Bob will drop out of school because his family cannot afford the school fee.

– _____, let’s give him a hand.

A．If so

B．If only

C．Where necessary

D．Where possible

下图为我国某地地形和降水分布示意图，当地居民随季节转场放牧。降水量大于400mm为森林景观，200～400mm为草原，小于200mm为荒漠。读图，完成下列小题。

森林景观出现在（）

A．甲

B．乙

C．丙

D．丁