开放性气胸典型临床表现是( )
A.伤侧的胸部叩诊呈鼓音B.纵隔移位C.呼吸困难、发绀D.胸部可见吸吮性伤口,随呼吸气体出入伤口嘶嘶声E.皮下气肿
参考答案:D
某种饮料由纯净水、蔗糖、苹果汁、维生素C、维生素A、乳酸钙等配制而成.此饮料不含有的营养素是( )
A.糖类
B.维生素
C.水
D.油脂
Jamie is a young cook wants to improve school dinners. [ ]
A. who
B. whose
C. whom
D. which