问题
填空题
皮带输送机的主要作用就是靠它的皮带将工件输送到下一工序，通过（）或速比控调节到所需速度进行工作的。
答案
参考答案：变频器
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皮带输送机的主要作用就是靠它的皮带将工件输送到下一工序，通过（）或速比控调节到所需速度进行工作的。
参考答案：变频器
| Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need. | |
someone's motivation means 1_____ him or her to want to do what you know must be done. A person's motivation 2_____ two things: One is the strength of certain needs. For example, you are 3_____, but you must have a task completed by a nearing deadline. If you are starving, you will eat. If you are 4_____ hungry, you will finish the task at hand. The other is the perception (感觉) that taking a certain action will help 5_____ those needs. For example, you have two burning 6_____ -the desire to complete the task and the desire to go to lunch. Your perception of how you view those two needs will determine which one takes 7_____. If you believe that you could be fired for not completing the task, you will probably 8_____ lunch and complete the task. If you believe that you will not get into trouble or perhaps finish the task in time, then you will be more 9_____ to go to lunch. |