题目内容
对同杆塔架设的多层电力线路进行验电时，先验低压，后验高压，先验()层，后验上层。
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People say that________. 查看材料
根据下面内容，回答题：
Every morning， kids from a local high schoolare working hard. They are making and selling special coffee at a coffee caf6. They are also making a lot of money.
These students can make up to twelve hundred dollars a day. They are selling their special coffee to airplane passengers. After the students get paid， the rest of the money goes to helping a local youth project.
These high school students use a space in the Oakland airport. It is usually very crowded. Many people who fly on the planes like to drink the special coffee.
One customer thinks that the coffee costs a lot but it is good and worth it. Most customers are pleasant but some are unhappy. They do not like it if the coffee cafe is not open for business.
The students earn $6.10 an hour plus tips. They also get school credit while they learn how to run a business. Many of the students enjoy the work although it took some time to learn how to do it.
They have to learn how to steam milk， load the pots， and add flavor. It takes some skill and sometimes mistakes are made. The most common mistake is forgetting to add the coffee.
Based on the passage， it seems that the purpose of the cafe is to________. 查看材料
According to the passage， texts that are meant to persuade often________.
放线或撤线、紧线时，应采取措施防止导线和架空地线由于()或其他原因而与带电导线接近至危险范围以内。
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