High risk group during flu season include the elderly, pregnant women, young children and people with poor health.
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Doctors and nurses are immune when taking care of the patients infected with influenza.
A. 对
B. 错
属于抗过敏平喘药的是( )
A. 氨茶碱
B. 异丙肾上腺素
C. 麻黄碱
D. 色甘酸钠
E. 肾上腺素
沙丁胺醇的平喘作用是由于( )
A. 松弛支气管平滑肌
B. 增强血管通透性
C. 收缩支气管平滑肌
D. 减弱气道纤毛运动
E. 减轻黏膜下水肿
对幼儿的表现给予肯定性评价所使用的语言是（）
A. 激励语
B. 表扬语
C. 赞美语
D. 评价语
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