问题 问答题 简答题

安装液压锤式破碎机要注意哪些事项?

答案

参考答案:

(1)当把铲斗换成锤式破碎器时,不要让脏物进入液压系统;

(2)不使用锤式破碎器时,要给小臂顶上的接管口盖上盖子,并在锤式破碎器的软管端部装上塞子,以防止脏物进入系统内;

(3)连接完之后,检查连接的密封配合是否漏油和管夹头的螺栓是否松弛。

阅读理解

March Break Leadership Camp

The aim of this FREE program is to develop an awareness of race relations, diversity, an equal issue for students in Grades 6-8.

Place: The Central Library Room

Time: March 16&17, 2009 from 9:00 am to 3:00 pm

Pick up and hand in registration forms(报名表) at the Central Library. All forms must be handed in by March 6th. Space is limited.

Please send any questions related to the program to Becky George, the Public Library 905-831-6265 ext 6230 or email: pickering-younity@hotmail.com

Free Your Space……Free Your Mind

At the Central Library: Wednesday, May 13th from7:00 pm to 8:30 pm

This time management course will help you to create more balance and time in your life. In today’s increasingly stressful times, it is becoming more difficult to spend quality time with family and friends. This course will provide positive solutions and strategies (策略) to achieve peace.

Book Club for Teens

At the Central Library: Every 2nd Thursday at 7:00 pm

Do you enjoy reading? Part of the pleasure of reading comes from meeting with others to discuss characters, plots or style. Come to trade ideas and questions, and make new friends.

This program is currently full but for more information, please call 905-831-6265 ext 6232.

Computer Training

Group computer classes for teens will be provided at the Central Library in March, April, and May. Registration starts at 9:30 am on Friday, March 6th for the March session; Friday, March 27th for the April session; and Friday, April 24th for the May session.

A valid(有效的) Public Library card is required for all computer training sessions. Call the Central Library for more information or to register, 905-831-6265 ext 6243.

Limit 10 participants(参加者) per class.

小题1: What do these four programs have in common?

A.They are held in the same place.

B.They are held at the same month.

C.All of them are free of charge.

D.All of them limit the number of participants.小题2:John is always in a hurry and not good at arranging his time. He should attend_________.

A.Computer Training

B.Free Your Space …..Free Your Mind

C.March Break Leadership Camp

D.Book Club for teens小题3: If you want to do computer studies, you need to ______.

A.register for each session a month in advance

B.find other students to form a group

C.go to the library to register by yourself

D.own a valid Public Library card

单项选择题 A1型题