three groups, we could do the job effectively  and finished it on time.    [      ]

A. Dividing into    

B. Separating from    

C. Divided into    

D. Separated from

该患者诊断考虑为

A．泌尿系肿瘤所致

B．慢性肾小球肾炎

C．急性肾盂肾炎

D．肾病综合征、左下肢静脉血栓形成

E．慢性肾功能不全