题目

语法填空 Most students do an IQ test early in their school career. Even if they never see their results, they feel that their IQ is determines how well they are going to do in life. When they see other (student) doing better than them, they usually believe that those students have a (high) IQ and that there is nothing they can do (change) facts. However, new research into EQ suggests that success is not (simple) the result of a high IQ. While your IQ tells you how (intelligence) you are, your EQ tells you how well you use your intelligence. Professor Salovery, who (invent) the term 4．地球上有无数大大小小的生态系统，最大的生态系统是（　　）A．生物圈B．草原C．森林