题型:问答题 of the students in my school are girls.A.Two fifthsB.Second fifthsC.Two fifth D.Fifth two 查看答案
题型:问答题 男,48岁,上腹痛6小时,腹胀。阑尾切除术后5年,查体:上腹压痛,肋腹皮肤呈灰紫色斑,血淀粉酶<500U(Somogyi法)。最可能的诊断是A.急性轻型胰腺炎B.肠梗阻C.消化性溃疡穿孔D.急性重症胰腺炎 查看答案