根据寡糖的生物学功能可将寡糖分为（）和（）两大类。
参考答案：功能性寡糖；普通寡糖
---What if I have to go there and know nothing about it?
--- If I______ you, I would try to find some information about it on the Internet.
A．am
B．was
C．will be
D．were
下列哪种补体低下可作为SLE活动的指标之一（）
A.C3
B.C2
C.C4
D.C6
E.CH50
