问题详情

From the passage we can infer that____.
A．the artificial creation of a subspecies unlike us is something that never happens
B．games are psychologically unhealthy
C．any artificially created subspecies would be our enemy
D．the real or imagined existence of an opposing subspecies is inherent in man" s activities此题为多项选择题。请帮忙给出正确答案和分析，谢谢！