婴幼儿哮喘诊断中哪项错误:()
A.反复咳嗽3次以上
B.婴幼儿哮喘评分小于5分可作出诊断
C.家族哮喘史阳性
D.喘息呈突发发作
E.年龄小于3岁
参考答案:B
While he was investigating ways t improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
A.a ,/
B.a ,the
C./, the
D.the ,a
《.小白菜》 是( )民歌.属于( )合唱.