What gift does Mary receive from her grandmother?
A lovely dog.
B. A new shirt.
C. A fine skirt.
查看答案
What does Mary not do according to the conversation?
A. Give gifts.
B. Make a wish.
C. Blow out the candles.
慢性肺源性心脏病最常见的病因是()
A. 支气管扩张症
B. COPD
C. 肺小动脉栓塞
D. Ⅳ型肺结核
E. 严重的胸廓畸形
引起肺血管阻力增加的解剖学因素不包括()
A. 肺血管炎症
B. 缺氧
C. 肺泡毛细血管管腔狭窄或闭塞
D. 肺血管重塑
E. 血栓形成
慢性肺心病病人肺、心功能失代偿期的主要表现是()
A. 咳嗽、咳痰
B. 肺气肿的症状和体征
C. 肺动脉瓣区第二心音亢进
D. 右心室肥大
E. 呼吸衰竭与右心衰竭