Many fungi can reproduce asexually.许多真菌可以无性繁殖。In asexually propagated species, variability resulting from recombination may be severely limited, or even precluded.在无性繁殖物种中, 重组产生的变异可能受到严重限制, 甚至受到阻止.The swelling produced b...
Chlorination is carried out with Nhaloamines and sulfuric acid.氯化是用N- 卤胺和硫酸.The practice of chlorination has become so widespread.氯化法在实践中已得到广泛应用.The process of 2 - chloropyridine chlorination synthesis by pyridine and ap...
一只大盘子直向听差的脑袋飞来.A large plate came skimming out , straight at the footman's head.我打了铃, 吩咐听差把我的旅行皮包收拾好.I rang the bell, and directed my servant to pack my portmanteau.秘书们和身穿制服的听差们步履轻徐,一如太平年月.Secretaries and uniformed ...