Objective To study the immunity duration of attenuated live rubella vaccine.目的了解冻干风疹减毒活疫苗的免疫持久性....round arches and attenuated columns.圆拱门和细长石柱Objective : To analyze the efficiency of delivery for CD 8 + T cell epitope b...
谁来决定他们之中谁的权力应该更大一些？Who is to say which of them had more power?我记不清我们再次会面是谁的主意了。I can't remember whose idea it was for us to meet again.我不知道那是谁的外套。I wondered whose the coat was....
The decline in marriage has been offset by a rise in cohabitation.结婚人数的减少由于同居人数的增加而得以弥补。Unit 13 Cohabitation: Trial Marriage or Lack of Commitment?同居: 试婚还是缺乏责任?The fastest growth in cohabitation is among the over - 50 se...