The clone anergy and clone deletion are considered as the major theories of the immunotolerance mechanism.以往观点认为,T细胞 免疫耐受机制主要有克隆无能和克隆删除两种学说.This involved the deletion of a great deal of irrelevant material.这包括删除很大一部分不相关的...
体育老师让我们靠着水泥墙排好。The gym teachers lined us up against the cement walls.她紧靠着他。She leaned against him.绿色金属文件柜靠着各面墙依次排开。Along each wall stretched green metal filing cabinets....
a collection of postcards, tickets and other ephemera明信片、票证和其他短时效物品的收藏系列Large new souvenir shop, antique and ephemera sales on the ground floor.新的大型礼品店, 古董店和蜉蝣销售地下....