Good afternoon, boys and girls. I’m Li Hong. I’m an English boy. Li Hong is my Chinese name. Look, this is a picture of my family. The tall man is my father. His name is Ken Martin. This is my mother, Sandy Jordan. Who’s that little girl? She is my sister, Lucy. Can you find me in the picture? I’m the boy in blue. 　　

根据短文选择正确答案。

小题1:This is ________ family.

A．a Chinese

B．an English

C．a Japanese

D．an American小题2:There are ________ people（人）in the picture.

A．one

B．two

C．three

D．four小题3:________ is my father.

A．Sandy

B．Ken

C．Mrs. Martin

D．Mr. Jordan小题4:________ is my mother.

A．Sandy

B．Ken

C．Mrs. Martin

D．Mr. Jordan小题5:What color am I in? I am in ________.

A．brown

B．black

C．blue

D．red

关于活塞杆填料函正确的论述是（）。

A．环要有足够的弹性，才能保证密封和刮油效果

B．环磨损后各工作间隙增大

C．填料函在不吊缸的情况下可单独检修

D．填料函下部刮环刮下的滑油由与壳体相连的通道引到机外