.

According to some doctors, one of the ways to prevent us from growing old is to make sure

that our brains get enough___.

A．performance

B．exercise

C．experience

D．sport

在财力有限和财政支出存量结构刚性较强的状况下，财政支农政策需要按照（）的思路稳步推进。

A.明确目标

B.统筹兼顾

C.整合资金

D.完善机制

E.分级管理