轴(纵)向分辨力直接与什么有关()。 ["穿透深度","脉冲波的长度","阻尼","入射的角度","声束的宽度"]
胃溃疡的好发部位是() ["胃窦大弯侧","胃窦小弯侧","胃体小弯侧","小弯胃角附近","胃底部"]
铅中毒的特效解毒剂是() ["A.依地酸二钠钙","B.亚甲蓝","C.亚硝酸盐-硫代硫酸钠疗法","D.纳洛酮","E.阿托品"]
引起红细胞代偿性增高的原因,应除外() ["新生儿","登山运动员","真性红细胞增多症","某些先天性发绀性心脏病","慢性肺心病"]
亚硝酸盐中毒的特效解毒剂是() ["A.依地酸二钠钙","B.亚甲蓝","C.亚硝酸盐-硫代硫酸钠疗法","D.纳洛酮","E.阿托品"]
两肺散在湿啰音、伴哮鸣音及呼气延长()。固定性湿啰音()。局限性吸气性哮鸣音()。普遍性哮鸣音,呼气延长()。