It was not the cyclists but the driver who ________  for the traffic accident.[ ]

A．were blamed  

B.   was to blame  

C．was to be blamed  

D．were to blame

视衣脱离的主要临床表现有（）

A.视野缺损

B.夜盲

C.视网膜呈灰白色隆起，血管起伏呈爬行状，部分可查见网膜裂孔

D.视网膜黄斑部色素紊乱，中心凹反光减弱

E.发病前常有眼前黑影或闪光感，视物变形、弯曲，视力突然下降