__________annoyed him most was that he had received no apology.

A．How

B．Why

C．What

D．Which

关于先天性白内障下列描述中哪项不正确（）。

A.其病因可能与遗传、病毒感染、药物有关

B.晶状体混浊可表现为点状、冠状、纺锤状

C.治疗目的是恢复视力、减少弱视

D.都应该进行手术治疗

E.术后应该进行屈光矫正和视力训练