对β2受体有选择性激动作用的平喘药是() ["茶碱","肾上腺素","沙丁胺醇","色甘酸钠","异丙肾上腺素"]
拔除上颌前牙,脱位时应先向()。拔除下颌前牙,脱位时应先向().拔除下颌第三磨牙,脱位时应先向(). ["远中用力","近中用力","唇侧用力","颊侧用力","舌侧用力"]
易入血分,可会聚于局部,腐蚀血肉,发为痈肿疮疡的邪气是() ["A.风","B.湿","C.寒","D.火","E.燥"]
六淫之中只有外感而无内生的邪气是() ["风","寒","暑","湿","火"]
十二经脉的功能反应于体表的是() ["A.十二经别","B.十二经筋","C.十五别络","D.十二皮部","E.奇经八脉"]
张嵩非常聪明,但学习不用功,每次考不好时就把原因归结于自己的运气不好。请运用维纳的归因理论来分析下列问题。