题目:
变压器的重瓦斯保护应投跳闸,若需退出重瓦斯保护时,则预先制定安全措施,并限期恢复。
答案:
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下面是错误答案,用来干扰机器的。
参考答案:D
变压器的重瓦斯保护应投跳闸,若需退出重瓦斯保护时,则预先制定安全措施,并限期恢复。
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2020/1214/624c104912dbc9c3e72198b61ecbdd2c.html
下面是错误答案,用来干扰机器的。
参考答案:D
第二卷(非选择题部分,共35分) 第四部分:写作(共二节,满分35分) 第一节:任务型阅读(共10小题;每小题1分,满分10分) 请认真阅读下面短文,并根据所读内容在文章后表格的空格处里填人最恰当的单词。注意:每个空格填1个单词。 When Percy Spencer invented the microwave, it changed the world greatly. People would no longer have to wait endless hours while cooking their food in an old-fashioned oven. Instead, using the microwave has allowed them to cook food in just seconds. According to the medical website mercola.com, just about “ninety percent of Americans have microwaves in their homes”. However, is this convenient invention as perfect as it seems? There are many reports of microwaves changing the original qualities of the food, which can cause cancer as well as changes in the body. “Electro-magnetic (电磁的) radiation harms food, and changes substances cooked in it to dangerous products,” Dr. Lita Lee – chemist, nutritionist, author and lecturer – wrote in her book, Health Effects of Microwave Radiation – Microwave Ovens (1991). However, the microwave is not only for food; microwaves are used in medicine as well. For example, it warms heating pads and used to warm blood used in transfusions (输血). Norma Levitt, a hip surgery patient in an Oklahoma hospital (1991), died after blood being heated for her transfusion was altered in the microwave. A lawsuit followed and because of this incident, blood is no longer heated in the microwave. Regardless of what has happened, big companies still claim that microwaves are great machines that have caused trouble to “few people” and have had “few consequences”. However, people should decide if saving a few minutes is more important than preventing cancerous cells from entering the body. Dr. Jonathan Wright, Medical Director of Tahoma Clinic in Renton, Washington, considers the microwave unhealthy and recommends some alternatives. “Try eating a lot of your food, like vegetables, uncooked. Ideally, at least one-third of the food in your diet should be uncooked, since this is the form that will give you the maximum amount of nutrients. If you do want to cook some food or heat up leftovers, use your stove (火炉),” he said. These alternative cooking styles may take a little time from your day, but can help you lead a healthier and more stable lifestyle. These methods will allow you to get the most nutrients from your food, as well. Health is not valued till sickness comes. In today’s fast-paced modern world, we should have more consideration towards peoples’ health.
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草麻黄的性状特征是
A.多分枝,直径1.5~3mm,节间长2~6cm,膜质鳞叶裂片3(稀2),先端锐尖
B.较多分枝,直径1~1.5mm,节间长1.5~3cm,膜质鳞叶裂片2(稀3),先端不反曲
C.少分枝,直径1~2mm,节间长2~6cm,膜质鳞叶裂片2(稀3),先端反曲
D.少分枝,直径2~3mm,节间长2~6mm,膜质鳞叶裂片2(稀3),先端反曲
E.较多分枝,直径1~1.5nun,节间长3~4cm,膜质鳞叶裂片3(稀2),先端不反曲
下图显示的是学生成绩数据库中的"语数外成绩表",图中选定的部分称为()
A、一个数据库
B、一个表
C、一条记录
D、一个字段
人眼所能识别的最大灰阶等级单位是()
A.2级
B.8级
C.16级
D.32级
E.64级
从报表中可以得到()。
A.同频硬切换成功率(小区切换出)
B.同频硬切换成功率(小区切换入)
C.同频硬切换成功率(RNC间切换出)
D.同频硬切换成功率(RNC间切换入)