加强水利基础设施建设的分区治水思路是？
参考答案：
北部节水、中部调水、南部开源节流。
Mr Smith _____ his living by teaching ten years ago and he _____ greatly from his work.[ ]
A. earned；earned
B. earned；gained
C. gained；gained
D. gained；earned
我国对于实用新型专利申请采取下列哪一种审查制度（）
A.早期公开，延迟审查制度.
B.注册登记制度.
C.初步审查制度.
D.检索，请求审查制度
