摘要
In the 21st century the society got some achievements in technological, education,economic,social-political, cultural and etc.sectors.But society couldn't solve fully the food security problem yet.According to the information given by FAO if in 1970 there were 400 billion hungry people in the world,in 2008 the number of hungry people was doubled and increased to 800 billion people.
In the 21st century the society got some achievements in technological, education, economic, social-political, cultural and etc. sectors. But society couldn＇t solve fully the food security problem yet. According to the information given by FAO if in 1970 there were 400 billion hungry people in the world, in 2008 the number of hungry people was doubled and increased to 800 billion people.
