【简答题】Which of the following statements aboutgenetic drift is trueA. Mildly disadvantageous alleles不利基因 can sometimes increase in frequency, due to genetic drift. B. Evolution by random genetic drift procee...
【单选题】The phrse "drift off" in Paragraph Two can be replced by .
【简答题】抗原性漂移(antigenic drift)
【简答题】A.drive B.sail C.cruise D.drift
【单选题】两人在压刨机上刨削木材时,木料过刨刀_____mm后,下手方可接拖。
【简答题】A.flow B.wander C.jump D.drift