—It’s getting late. I’m afraid I must be going now.

—OK. _______

A．Take it easy.

B．Go slowly.

C．Stay longer.

D．See you.

男孩，10岁。未经肾活组织检查诊断为肾炎性肾病。可呈下列临床特点，除了（）

A.血尿

B.高血压

C.氮质血症

D.血清C₃降低

E.对激素治疗完全无效应