变压器交接试验项目、标准。

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问题:

变压器交接试验项目、标准。

考点:电气运行工考试电气运行工(高级)电气运行工(高级)题库
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阅读理解。

    Vitamins play an important role in people's health. Without them, your body cannot workproperly.

    Vitamin A helps keep your skin healthy and helps your eyes get used to the darkness. Good  sources of Vitamin A are deep yellow and dark- green leafy fruits and vegetables, such as carrots

and potatoes.

    Vitamin B helps keep your need for food and its absorption (吸收) normal. Milk products,  grain

products, and meat are good sources of B Vitamins.

    Vitamin C is found in many fruits and vegetables, such as tomatoes, strawberries, and cabbages. People who don't get enough Vitamin C for a long time injure easily.

    Vitamin D is called " sunshine"  Vitamin. Your own body makes it when you are in sunlight. It helps your body use minerals (矿物质) to build stronger bones and teeth. The oily fish is a good source of Vitamin D.

    Vitamin E helps increase the immune function(免疫功能). It can be found in foods such as  vegetable

  oils, nuts and seeds.

1. Enjoy the__________ and eat__________.

2. You should_______________________.

3. You'd better_____________________.

4.Why not______________?

5. You need to_______________.

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给下列加线的字注音。

(  )   谣(  )  佗傺(  )  鸟(  ) 攘(  )

羁(  )   荷(  )  岌(  )  死(  ) 芳(  )

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关于地球自转和公转的说法,错误的是(  )

A.公转和自转的方向都是自西向东

B.地球公转产生四季变化

C.地球自转产生昼夜更替

D.公转和自转的方向是相反的

题型:问答题 简答题

采用ELISA竞争一步法检测抗HBc抗体,如果固相包被的物质是抗原

酶标记物是()

A.酶标记的HBeAg

B.酶标记的抗HBe抗体

C.酶标记的抗HBc抗体

D.酶标记的鼠抗人IgG抗体

E.酶标记的鼠抗人抗体

题型:问答题 简答题

医疗上常用的生理盐水是质量分数为0.9%(密度近似1g/cm3)的氯化钠溶液.250mL这种生理盐水中含氯化钠______g,水______g;若以每分钟50滴(20滴为1mL)的速度给病人静脉输液,250mL这种生理盐水需______分钟输完.

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