关于设备采购的质量控制，下列说法正确的有( )。
A．成套设备及生产线设备采购，宜采用招标采购的方式
B．总包单位采购，采购方案由监理工程师编写并报建设单位批准
C．市场采购设备，一般适用于小型通用设备的采购
D．建设单位采购，监理工程师要协助编制设备采购方案
E．向厂家订购设备，质量控制工作的首要环节是选择一个合格的供货厂商
参考答案：A,C,D,E
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| If you go to a fast food restaurant, you can see a lot of teenagers. Today many teenagers are very 1 , and that is because of their bad eating habits. Most teenagers love food 2 a lot of fat, oil, salt and sugar. People often call this kind of food "junk food". But bad eating habits are 3 than fast food. We find many teenagers eat unhealthily. Some don't have _4 before they go to school. During the day, some don't have a proper meal for lunch. In a survey at one school, scientists 5 that over two thirds of the students didn't follow a _6 diet. They didn't like vegetables, and many of them didn't like to eat fruit. Parents today 7 worry about their children's diet. Some doctors give the following advice: Teenagers shouldn't eat 8 junk food. Teenagers shouldn't eat food with too much 9 . Salty food can cause high blood pressure in the future. Teenagers should eat food with 10 fat, oil, and sugar. Teenagers need to eat some fruit and vegetables every day. Fruit and vegetables are rich in vitamins and have little fat. | ||||
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