西方大国普遍采取这样的措施处理经济问题，即把40％的国有企业出售给私人，削减住房、医疗、失业等各种社会福利开支，减少税收，提高利率。这是为了（     ）

20世纪70年代末，我国思想理论界展开了一次关于什么问题的讨论（    ）

小军根据学习函数的经验，对函数y=﹣ $\sqrt{x+2}$ +|x|的图象与性质进行了探究．

下面是小军的探究过程，请补充完整：

我国探明在南海海底有大量的可燃冰．“可燃冰”作为新型能源，有着巨大的开发使用潜力。同等条件下，“可燃冰”完全燃烧放出的热量达到煤气的数十倍，这说明“可燃冰”的____很大。完全燃烧相同质量的可燃冰和煤气，燃烧____放出的热多，1kg的可燃冰，燃烧一半后，剩余可燃冰的热值____．（选填“变大”、“变小”或“不变”）

    A good teacher is many things to many people. In my own experience, the people I respect the most and think about the most are the teachers who demanded the most discipline (纪律) from their students.

    I miss one teacher in particular that I had in high school. I think she was a good teacher because she was a very strict person. I remember very clearly a sign on her classroom door. It was a simple sign that said,    "Laboratory: in this room the first five letters of the word was stressed not the last seven." In other words, labor for her was more important than oratory, which means making speeches.

    She prepared her work very carefully and told us to do the same. We got lots of homework from her. Once she had broken her arm, and everybody in the class thought that maybe the homework load would be reduced, but it continued just the same. She checked our work by stamping her name at the bottom of the papers to show that she had read them.

    I think sometimes teachers who demand the most are liked the least. But as time goes by, this discipline really seems to benefit the students.