慢性闭角型青光眼形态学诊断应选择() ["A．B超","B．光学相干断层扫描","C．A超","D．超声生物显微镜","E．彩色多普勒成像"]
VEP检查时，视神经和视路疾患常表现为（） ["A．P-100波振幅上升，潜伏期延长","B．P-100波振幅上升，潜伏期不变","C．P-100波振幅下降，潜伏期缩短","D．P-100波振幅下降，潜伏期延长","E．P-100波振幅下降，潜伏期不变"]
世界卫生组织规定，较好眼最佳矫正视力低于多少为低视力() ["A．1.O","B．O.3","C．0.8","D．0.1","E．O.05"]
何谓原位癌?
根据组成成分和形态特点不同，腺瘤可分为哪些类型?
何谓癌肉瘤?
