单项选择题
A.pick up any two persons B.choose two persons who are relatives C.take out two different persons D.choose two persons with different intelligence
A.never become a genius B.still become a genius if he should be given special education C.exceed his intelligence limits in rich surroundings D.not reach his intelligence in his life
A.the importance of their intelligence B.the role of environment on intelligence C.the importance of their positions D.the part that birth plays