女性,25岁,自幼有哮喘病史,春游后气急1天就诊,此时不宜做哪项检查()。
A.胸部X线
B.血气分析
C.血清IgE检测
D.皮肤过敏原试验
E.血嗜酸性粒细胞检测
参考答案:D
下列关于尿糖的说明中,正确的是()
A.尿糖阳性,肯定有血糖升高
B.尿糖阳性时肾小管不能全部将糖重吸收的结果
C.尿糖阳性即可诊断糖尿病
D.Benedict(斑氏)试剂只检查尿中有无葡萄糖
E.尿糖阳性肯定有糖代谢异常
A defensive stock is best characterized as:()
A. being heavily influenced by aggregate business activity.
B. generally retaining a large portion of earnings.
C. having low systematic risk.