Attention should be paid to the gistory of unclean coitus or uterine cavity operation.因此,在诊断感染性疾病时应注意近期不洁同房史或宫腔手术史.They may attempt coitus with calves, ponies, sheep, pigs, dogs, and even ducks or chickens.他们可能尝试与小母牛 、 小...
Water soluble hydroxypropyl � � cyclodextrin was converted to acetonyl hydroxypropyl � � cyclodextrin via selective oxidation.通过选择性氧化,将水溶性优良的羟丙基β环糊精转化为丙酮基羟丙基β环糊精....
From then on, they were taking no chances.从那时起，他们就不再冒险了。From then on we raised our heads and became our own masters.从此我们抬起头来当家做主了.We become companion in misfortune from then on.从那时起,我们就成了患难之交....