目前我国主要传统行业产能利用率低于75%（注目前国际普遍的标准是产能利用率小于75%为严重过剩）。我国新型行业风电设备制造的产能利用率只有67%，光伏电池为57%，多晶硅只有35%。产能严重过剩已经成为中国经济运行中的突出矛盾和诸多问题的根源。下列属于有利于“化解产能严重过剩矛盾”的经济措施是（  ）

①降低过剩行业产品的销售价格，增加市场的需求量

②引导市场消费需求升级，促进投资结构优化

③发挥国有经济对经济的主导力量

④深化投资和财税等重点领域改革，规范市场秩序，完善市场机制

    According to a study by some organizations, more than half of the things in the world are made in China. And these things are all about people's ____ life.

    In order to truly understand ____ so many things are made in China, you have to understand the history. China is one of the ____ countries with rich civilization on the earth for thousands of years. Chinese people have made a lot of things very smartly. Usually it would take westerners and other ____ 100 more years to find out how to make them. They have clever minds and work hard, so you can see that so many things ____ made in China.

    If you study Goldman Sach's report on the future, you will see that China will take charge of (控制) a quarter of the ____ GDP in the near future.  ____some big companies are moving to other countries from China, China is making more products with fine quality(质量), as ____ as Japan, the USA and Europe.____20 years or so, people will not look for a Ferrari(法拉利), but a Chinese car that no one has heard of yet.

    China isn't just making products. It's helping people in the world ____ better.

若x+y=1，则代数式3（4x﹣1）﹣2（3﹣6y）的值为（　　）