题型:选择题 He always brings me a pretty gift ____ he comes to visit me.A.by the timeB.sometimesC.every timeD.at times 查看答案
题型:单项选择题 患者,男性,26岁,饱餐后上腹剧痛6小时,伴呕吐、低热,腹平软,脐周压痛,实验室检查血清淀粉酶500U/L(Somogyi法)。伴有下列哪种情况时可短期使用糖皮质激素()A.腹水B.明显的低钙血症C.高血糖D.ARDSE.氮质血症 查看答案