题型:单项选择题 典型胆囊结石声像图可见:()A.强回声团,胆汁透声度降低B.强回声团及其后方的声影C.强回声团,胆囊壁增厚,胆汁透声度差D.强回声团并沿重力方向运动E.强回声团及后方的声影,并沿重力方向运动 查看答案
题型:选择题 —Can I help you? —I want to buy something _____ presents _____ my mother. [ ]A. for; for B. as; for C. as; to D. like; to 查看答案
题型:单项选择题 A1/A2型题 单从血检看,急性有机磷农药中毒患者全血胆碱脂酶活性为多少时,可诊断为重度中毒()A.10%~30%B.30%~50%C.50%~70%D.70%~80%E.80%~90% 查看答案