22．Somalia pirates, mainly made up of four groups,_______________,Puntland Group, National. Volunteer Coast Guad, Merkah and Somalia Marine, are currently active in the Somali waters.

A．including

B．regarding

C．namely

D．Besides

新生隐球菌的致病物质是（）。

A.内毒素

B.外毒素

C.荚膜多糖

D.真菌毒素

E.毒素