公关启事、声明、演讲稿所属的文种类型为
A．策划类
B．信函类
C．规约类
D．告启类
参考答案：D
临时雇员需要将每一次任务看成是一次（），保持积极态度是必要的。
_____ I was reading at home, my father was watching TV. [ ]
A. While
B. As soon as
C. When
D. After
