X-性连锁隐性遗传（）。

A.家系中男性患者远高于女性患者，男性患者的外孙可发病

B.母系遗传，男性患者的后代不发病

C.家系中连续几代都有患者，男女患病机会均等

D.非连续传代，近亲结婚的后代患病率增高，男女患病机会均等

E.视网膜母细胞瘤

— Pity you missed the lecture on nuclear pollution

—I _______ it, but I was busy preparing for a job interview.

A．attended

B．had attended

C．would attend

D．would have attended