常规RH精炼炉具有()
A.脱碳
B.脱磷
C.脱硅
D.脱锰
参考答案:D
Han Hong's new CD_______ and it sounds_______.
A.has been come out; wonderful
B.has come out; well
C.has come out; wonderful
D.is come out; nice
左心功能不全肺循环淤血的主要临床表现,下列哪项不正确()
A.咳嗽、咳痰,痰为浆液性,呈白色泡沫状
B.劳力性呼吸困难,休息即缓解
C.肺微小动脉压增高,血浆外渗,痰内带血丝
D.阵发性夜间呼吸困难
E.支气管痉挛,发作性哮喘