结核性腹膜炎最常见的直接原发病灶为:() ["肺结核","肠结核","肝结核","肾结核","脾结核"]
钩端螺旋体的主要特征为() ["菌体纤细,有12~18个螺旋","钩体革兰染色阴性","对常用消毒剂敏感","菌体两端有钩,具有较强的穿透力","菌体裂解释放类似内毒素性质的毒素"]
上消化道出血最常见的原因是() ["消化性溃疡","食管静脉曲张","急性糜烂出血性胃炎","胃癌","食管癌"]
一下对回声的描述,正确的是()。 ["软骨为强回声","小儿肾锥体为等回声","胆汁、尿液为无回声","囊肿合并出血或感染时,液体内回声不增加","固体均是有回声的"]
关于牙龈癌(如图)的叙述,哪项是错误的() ["多为鳞状细胞癌","男性多于女性,以溃疡型多见","早期向牙槽突及颌骨浸润","下牙龈癌发病率高于上牙龈癌","上牙龈癌比下牙龈癌转移早"]
()为肾之标。