倾斜牙做固定桥基牙的最大倾斜限度是（） ["10°","20°","30°","40°","50°"]
既能清热解毒，又能镇心安神的药物是（） ["龙骨","酸枣仁","柏子仁","朱砂","穿心莲"]
再障与下列哪项难鉴别（） ["低增生性白血病","缺铁性贫血","脾功能亢进","PNH不发作型","巨幼细胞贫血"]
中毒型痢疾的发病原理是（） ["机体免疫力下降","痢疾杆菌毒力过强","感染痢疾杆菌的数量过多","机体对细菌毒素异常强烈的反映","局部IgA分泌不足"]
肺心病右心衰的表现（） ["胸片上可见Kerley-B线","P>A","肝肿大及双下肢水肿","胸片上可见肺动脉段突出","心浊音界左侧扩大"]
什么叫磁共振血管造影？
