膀胱癌最常见的组织类型是（）。
A.鳞癌
B.腺癌
C.移行细胞癌
D.透明细胞癌
E. * * 状癌
参考答案：C
--- Are you _____with doing a lot of homework everyday?
--- Sometimes I am. But as a student , we have to do so at present.
A．satisfied
B．encouraged
C．bored
D．pleased
描述角色扮演法的实施过程和优缺点
