填空题

1. The sales call can be_____(annoy) sometimes.

2.I wonder when you            _____(be) free tomorrow.

3. It's an English story book_____(contain) many funny pictures.

4. Why           _____(not ride) the bike for the trip?

5. If you wish to pass the exam,work_____(hard).

根据（）掌握D型泵的装配质量要求，各零件问的配合关系，确定拆卸安装顺序及专用工具的使用方法

A.三视图

B.装配图

C.零件

D.剖面图