麻黄升压的有效成分是() A.右旋去甲基麻黄碱 B.麻黄碱 C.伪麻黄碱 发布时间:2018-03-01 14:37 │ 来源:www.tikuol.com 题型:单项选择题 A1型题 问题: 麻黄升压的有效成分是()A.右旋去甲基麻黄碱 B.麻黄碱 C.伪麻黄碱 D.1-α-松油醇及2,3,5,6-四甲基吡嗪 E.左旋去甲基麻黄碱
题型:单项选择题 A1型题 These days, Grade 9 students stay up too late to finish ______homework and prepare for exams, as a result, some of them feel _________ the next day.A.much too; more tiredB.too much; much tiredC.too much; more tired D.much too; much tired 查看答案
题型:单项选择题 A1型题 脊柱结核的临床表现是A.多见于老年,膝关节病变常见,疼痛与关节活动关系密切B.好发于青壮年,发病部位多为骶髂关节、脊柱及髋、膝关节,无化脓及死骨形成C.各年龄组均有发病,儿童多见,病变多位于腰椎,成人常有椎间盘受累,有低热、消瘦等全身症状D.多发于女性,手足等小关节先受累,关节发病有对称性E.多见于中老年,病变累及椎体,可侵袭椎弓根,椎间盘较少受累 查看答案