【C3】A．ServedB．PoweredC．ForcedD．Reinforced

Customers are well waited on in this big department store.A．servedB．changedC．paidD．treated

Maryfrosted the cake.A．servedB．icedC．splitD．cooled

（4）A.IF（IN（59＜c3,c3＜79)，”及格”，”良妇”）B.”IF（IN（59＜c3,c3＜79)，”及格”，”良好”）”C.IF（AND（59＜c3，

【C20】A．be servedB．servingC．serveD．have served

C3转化酶是（　　）A.C3bBB.

Thus our conviction is reinforced that only socia