【名词&注释】
人际关系(interpersonal relationship)、医务人员(medical staff)、外伤性白内障(traumatic cataract)、老年性白内障(senile cataract)、实践出真知、年龄相关性白内障(age-related cataract)、先天性白内障(congenital cataract)、勤奋学习(assiduous learning)、辐射性白内障(radiation cataract)、中毒性白内障(toxic cataract)
[单选题]白内障分类中不属于按病因分类的( )
A. 老年性白内障
B. 先天性白内障(congenital cataract)
C. 中毒性白内障(toxic cataract)
D. 代谢性白内障
E. 发育性白内障