大多数天然气中烃类化合物的含量为()
A.10%~20%
B.20%~30%
C.30%~60%
D.60%~90%
参考答案:D
A child, age 3, is brought to the emergency department in respiratory distress caused by acute epiglottiditis. Which clinical manifestations should the nurse expect to assess
A. Severe sore throat, drooling, leaning forward to breathe.B. Low-grade fever, stridor, barking cough.C. Pulmonary congestion, productive cough, fever.D. Sore throat, fever, general malais
SPA的现代含义是指:SPA是指()。
A.蕴藏矿泉水的所在地
B.一个地名
C.一种健康美容新理念
D.一种新型泡浴方法