诊断阻塞性肺气肿,最有价值的是() ["PaO低于正常","残气量/肺总量>40%","第一秒用力呼气量/用力肺活量<60%","最大通气量低于预计值的80%","潮气量低于预计值的80%"]
小建中汤的君药是()。 ["芍药","桂枝","饴糖","炙甘草","生姜"]
简述我国现代小学教育的特点。
激活的PKC能磷酸化的氨基酸残基是() ["酪氨酸/丝氨酸","酪氨酸/苏氨酸","丝氨酸/苏氨酸","丝氨酸/组氨酸","苏氨酸/组氨酸"]
具有辛凉宣泄,清肺平喘功用的方剂是() ["桑菊饮","银翘散","麻黄杏仁甘草石膏汤","升麻葛根汤","麻黄汤"]
我国小学教育的具体任务有哪些?