题目内容:
Whichofthefollowingwouldbethebesttitleforthepassage?
A.SexRatioChangesinHumanEvolution. B.WaysofContinuingMan'sEvolution.
C.TheEvolutionaryFutureofNature.
D.HumanEvolutionGoingNowhere.
参考答案:
答案解析: