One sunny afternoon, Bernard Shaw(萧伯纳), was having a walk in a   76 (quietly) field. The air was fresh and the view was beautiful. While he   77 (walk), a bike rider ran into him. Mr. Shaw fell to the ground. The rider was very sorry. He got off his bike to help Mr. Shaw   78  (get) up.   79  (Lucky), Mr. Shaw was not hurt. “I’m so sorry!” said the rider.

“Oh, no,” said Bernard Shaw. “I should say sorry. I’m sorry for not   80  (give) luck to you.” Mr. Shaw looked at the puzzled (迷惑的) rider and added, “If you had killed me, you know, you would be famous all over the world.”

小题1: ___________ 小题2: ____________ 小题3: ___________ 小题4:___________ 小题5:__________

分析煤样的粒度应是（）

A.<0．1mm

B.<0．2mm

C.<0．5mm

D.<1mm