在肝细胞内与葡萄糖醛酸结合的是()
A.血红素
B.胆绿素
C.胆红素
D.胆素原
E.胆素
参考答案:C
In war, the Red Cross is supposed to offer help _________ there is human suffering.
A.whoever
B.however
C.whatever
D.whenever
在路由表中,特定主机路由表项的子网掩码为______。