Why the nation wants to control the va1ue - orientation in textbook ? how to improve the contents of value - orientation and the way of presenting and so on in ordeer to control effectively the value - orientation in textbook 国家为什么要对教科书价值取向进行控制?为了保证国家对教科书价值取向的有效控制，在价值取向的内容和呈现方式等方面有哪些有待改进之处
