图示细菌的三种类型，图中甲、乙、丙依次是（   ）

江城子·密州出猎

    老夫聊发少年狂，左牵黄，右擎苍，锦帽貂裘，千骑卷平冈。为报倾城随太守，亲射虎，看孙郎。

    酒酣胸胆尚开张，鬓微霜，又何妨！持节云中，何日遣冯唐？会挽雕弓如满月，西北望，射天狼。

排序。

A. There are five books on the table.

B. It's small, but it's clean.

C. There is a doll on the bed.

D. Look! This is my room.

E. I like my room.

F. There is a table and a bed in my room.

____

如果|a|=9，|b|=6，那么a﹣b的值为（　　）