It is not who is right but what is right___is of importance.

A．which

B．it

C．that

D．this

不属于糖尿病性植物神经病变者是（）

A.体位性低血压

B.腹泻、便秘

C.尿潴留

D.肢体麻木，感觉过敏

E.多汗