正常胆红素的代谢过程包括（）
A.胆红素的来源
B.胆红素的运输
C.胆红素的摄取
D.胆红素的结合
E.胆红素的排泄
参考答案：A, B, C, D, E
Mr Black is a careful and experienced worker, so he is often to finish some challenging tasks.
[ ]
A．appreciated
B．approached
C．appointed
D．distributed
变电所的接地装置有几种类型？
