细菌可分为______、______、______和______等四种基本形态
人体内铜的主要代谢部位是() ["A．肝脏","B．脾脏","C．肾脏","D．肠道","E．胰腺"]
分泌性中耳炎鼓室图典型曲线为() ["A．A型曲线","B．B型曲线","C．C型曲线","D．As型曲线","E．Ad型曲线"]
简述耳声发射的分类及临床意义。
肝豆状核变性的临床特征为() ["A．肝肿大、惊厥、肝细胞损害","B．脑退行性病变和角膜K-F环","C．CT特征性改变肝肿大","D．贫血和锥体外系症状","E．肝硬化及锥体外系症状"]
免疫球蛋白有五类，它们是_____、______、______、______、______和______。
