绦虫的致病阶段是()
A.棘球蚴
B.多房棘球蚴
C.囊尾蚴
D.成虫
E.虫卵
参考答案:B
— How come a simple meal like this costs so much?
— We have ______ in your bill the cost of the cup you broke just now. [ ]
A. added
B. included
C. contained
D. charged
组织界面是建设项目中最( )的界面类型。
A.特殊
B.固定
C.简单
D.复杂