患者男，47岁，诊断为慢性肾衰竭尿毒症期，无水肿；CCR18ml/min。下列叙述正确的有（）

A.对患者要严格限制水、钠的摄入

B.控制蛋白质摄入可降低血磷

C.血液透析或腹膜透析都可改善患者的贫血

D.患者出现神经肌肉病变

E.患者的贫血是正色素正细胞性贫血

Had it not been for the haze（霾）weather phenomenon, there         fewer car accidents in Beijing then．

A．would have been

B．were

C．may be

D．would be