—What are you going to give your mother for her birthday, Lucy?

—I'm not sure. But I'll buy her ______.

A. something special

B. anything special

C. special anything

D. special something

读图回答下列问题

（1）图中①②③表示我国的三大自然区，其中①是________，②是________，③是________。

（2）图中②自然区面临的主要生态环境问题是________，治理的根本措施是________________。