已知偶函数f(x)满足条件：当$x\in R$时，恒有f(x+2)=f(x)，且$0\le x\le 1$时，有f(x)>0则$f\left(\frac{1}{2}\right),f(-\frac{1}{3}),f\left(2\right)$的大小关系为                           （  ）

四项基本原则是____，改革开放是____。

阅读材料，完成下列要求。

    经过几十年的发展，中国已经成为全世界工业体系最为健全、制造能力最强的国家之一，拥有大量优势产业和优质产能。中国钢铁、水泥、汽车等220多种工业品产量居世界首位，机床产量占世界的38%，造船完工量占41%，发电设备产量占60%。中国国际产能合作已经成为中国对外经济合作的一张亮眼的“新名片”。

运用“政府职能”知识，分析我国政府在推进国际产能合作中如何发挥作用。

根据短文选择正确答案。

The future is coming! All over the world there are many new ideas(想法) for new places to live and work in. Some of them will be in the sea! They will be very big and lots of people will live and work in them. The Americans are planning to build a town called Atlantis City. It will be in the sea，about five miles away from the land. But the most exciting idea comes from Japan. It is called Acropolis. Acropolis will be a huge sea city, with parks, schools, a hospital and an airport. And it will move! It will travel slowly around the world. There are just two problems. Acropolis will cost (花费) a lot of money to make. And for people who get seasick, it won't be much fun.