【单选题】基于以下病例:
施女士,58岁。咳嗽、咳痰10年,近3年来出现活动后气急,并伴喘息。3日前受凉后咳嗽、咳痰、喘息加重。两肺闻及哮鸣音及细湿啰音,血白细胞9.6³109/L,中性粒细胞0.8,酸性粒细胞0.06。诊断可能为()
【判断题】The engines commonly used now are piston engines.
【单选题】施女士,58岁。咳嗽、咳痰10年,近3年来出现活动后气急,并伴喘息。3日前受凉后咳嗽、咳痰、喘息加重。两肺闻及散在哮鸣音及细湿啰音,血白细胞9.6×10^9/L,中性粒细胞85%,酸性粒细胞6%。医疗诊断首先考虑为
【单选题】______ is a casing used for exhaust pipes from the engines.
【简答题】设函数f(x)在x=0的某邻域内具有一阶连续导数,且f(0)≠0,f(0)≠0,若af(h)+bf(2h)-f(0)在h→0时是比h高阶的无穷小,试确定a,b的值.
【单选题】_____ the engines, the diesel engine is ____ used engine on board
A.
Between / more commonly
B.
Among / the most commonly
C.
Between / not more commonly
D.
Among / not the most commonly