In most western countries on April Fool’s Day，people often play________ trick on each other；children especially have great________ fun.

A．a；a

B．the；the　 　

C．/；a

D．a；/

核间性眼肌麻痹是由于哪个部位的损伤（）。

A.视束

B.视放射

C.膝状体

D.内侧纵束

E.动眼神经