题目内容

Task Listen to the passage twice and fill in the blanks with what you hear.Time is equal to everyone. Whether you are smart or foolish, ugly or beautiful, you have the same 24 hours each day that everyone else has. How you spend that valuable time determines the1. ___________________. Time is more precious than any possession.There are three rules for effective time management.Firstly, don’t create2. ___________________ . Don’t try to work full time and take a full load. Be reasonable about how much work you can do.Secondly, make a list of all the things that you need to get done in a given time period. Put the tasks in order of 3. ________________ and delete any unimportant items.Thirdly, avoid lack of focus. Use lists to 4.________________ . To be more attentive, set boundaries with family and friends when you are at work, as personal phone calls and emails can easily disturb your workday progress. In a modern 5. ________________, you can use technology to help. For unimportant communications, provide clients with a fax number or email address. This should cut down on the number of unimportant phone calls you receive throughout the day.[音频]

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钻削时,传出热量占比最大的是

A. 工件
B. 切屑
C. 热对流
D. 空气

切削加工中时有各种必要的切削运动。下列哪项说法是正确的?

A. 钻孔时工件完成切削运动
B. 铣削时刀具完成进给运动
C. 车削时刀具完成切削运动
D. 钻孔时刀具完成进给运动
E. 磨削时工件完成进给运动

利用摇臂钻床钻孔加工的主运动是指()

A. 钻头的旋转
B. 钻头往下
C. 摇臂的移动
D. 钻床的移动

用以扩大已加工的孔叫

A. 扩孔
B. 钻孔
C. 铰孔
D. 镗孔

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