孕妇，28岁。妊娠具体周数不详，欲判断胎儿成熟度，行羊膜腔穿刺。羊水卵磷脂/鞘磷脂(L/S)测定结果为1.5，提示
C
暂无解析
I_________(名词性物主代词)
Chinesepeopleareverygoodattablet_____，andit'sourfavoritesport
Thisbookisthelightestand______(thin)ofallthebooks.
()Pleasegivemetwobottlesof_______.
()What'sthisinEnglish?_____ajeep.
