![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
One can properly infer from this article that______.
A.
intellectually, our population is not homogeneous
B.
regardless of I. Q. , people must learn to live and work together
C.
high-I. Q. people are inclined to be more critical than low-I. Q. people
D.
people should constantly seek to improve their I. Q. levels