可杀灭疥虫的药物是
A
暂无解析
Homingpigeonisusefulasa______carrierbecausewhentakenfromhome,itwillreturnatthefirstopportunity.
低氧性呼吸衰竭是指在排除发绀型心脏病的前提下，患儿在吸入氧浓度大于_______%时，动脉氧分压小于_______mmHg。
Thehostsapologizedfor______thatsomeoftheirguestsmightbevegetarians.
Theteachergave_____theexaminationpaper.
Nosoonerhadwereachedhome________aviolentstormbrokeout.