1、今天用已经发表的论文做一个游戏。请大家:1)琢磨这句话的含义:As the focus of obstetric management, twin pregnancies have a high rate of pregnancy complications. 2)给出正确的写法。
2、这是已经发表论文中摘录的一句话:As the focus of obstetric management, twin pregnancies have a high rate of pregnancy complica