以太,能媒一种在以前被假定为电磁波的传播媒质并具有''.'绝对'.''连续性 、 ''.'高度'. ''弹性的极其稀薄的媒体.An all - pervading , infinitely elastic, massless medium formerly postulated as the medium of pro...
BPA ( brooks parsimony analysis ) is one of the most popular methods in the study of historical biogeography.BPA ( brooksparsimonyanalysis ) 是历史生物地理学研究的重要分析方法之一,在过去的20年内得以发展和完善.Capitals are increased by parsimony, and di...
Last year there was a plague of robbery and housebreaking.去年抢劫和入室行窃成灾。A plague on you and your damned percentages!你和你该死的百分比都见鬼去吧！I normally avoid cheap wine like the plague.我一般对廉价的葡萄酒敬而远之。...
早在16世纪镁盐被用作泻药.Magnesium were employed as cathartics as early as the 16 th century.这是疗效很好的泻药.The medicine was an effective purge.医生认为给病人服泻药的时候到了.The doctor think it is time that he physic the patient....
The woolly spider monkey is the largest primate in the Americas.绒毛蛛猴是美洲最大的灵长类动物。14 per cent of primate species are highly endangered.14%的灵长类物种处于高度濒危状态。14 percent of primate species are highly endangered.14%的灵长类物种处于高度濒危状态...