这个男孩在上小学的时候就初次显示出成为运动员的潜力。The boy first showed promise as an athlete in grade school.孩子们先上幼儿园，然后上学前班，再接着上小学。Children graduate to the kindergarten, then pre-school, and then school.这所小学有多少学生？How many pupils does the schoo...
上皮细胞的顶膜显然是必要的.The apical membrane of the epithelial cells is apparently essential.较小支气管的上皮破裂和部分脱落.The epithelium of the smaller bronchi was fragmented and partially desquamated.愈合过程的主要组成部分,是上皮形成.The dominant components o...
该酶蛋白含有17种氨基酸, 其中甘氨酸(Gly)和丙氨酸(Ala)为主要氨基酸.The protease includes 17 amino acids , among which, Gly and Ala are dominant amino acids.通过重组SOD技术使失去铜锌离子失活的酶蛋白恢复酶的催化活性.Furthermore, the inactivated enzyme losing metal ion is reac...