生物班的学生研究了果蝇的繁殖.The biology class studied the generation of fruit flies.射线对于果蝇的遗传产生强烈的作用.Radiation has a strong effect on the heredity of fruit flies.果蝇的一种实验品系,翅膀缩小,称为残翅.One laboratory stock of Drosophila melanogaster has...
Both groups share two attributes normally associated with vertebrates.两组都具有通常脊椎动物才具备的两个特征。We have already seen the sum total of his attributes.我们已经见识了他所有的那点儿品质。His cunning and guile were not attributes I would ever under...