The pulmonary migration of larvae is associated with fever, cough, occasionally hemoptysis.蛔蚴肺部移行,可伴有发热 、 咳嗽 、 偶尔咯血.Pneumothorax was noted in 16 cases ( 10.7 % ) and hemoptysis seen in 13 patients ( 8.7 % ).咯血发生率为8.7%,未发...
The two principal combustion products are water vapor and carbon dioxide.两种主要的燃烧产物是水蒸气和二氧化碳。City's principal marksman was Joe Harvey who scored seventeen goals.市队的头号射手是打进17粒进球的乔·哈维。Donald King is the principal of Da...
Energy prices have been kept low, so energy is used inefficiently.能源价格一直维持低水平，所以能源利用效率很低。The small family farm is steeped in inefficiently and struggles just to survive.小农场主陷于无效率的境况中,只为生存下去而苦苦挣扎.You can't afford to ...