常用的量具有哪些?

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问题:

常用的量具有哪些?

考点:煤炭矿山职业技能鉴定考试煤矿机械安装工(初级)煤矿机械安装工(初级)题库
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数笔画,填一填。

头  飞  耳  火  米  子  出  长

三画:________________________

四画:________________________

五画:________________________

六画:________________________

题型:问答题 简答题

有人调查前西德1958~1962年反应停的销售量和出生海豹状短肢畸形儿的数量,资料如下图所示。你认为这是一种什么类型的研究

A.随访研究

B.生态学研究

C.干预研究

D.随访研究和生态学研究

E.生态学研究和干预研究

题型:问答题 简答题

B

You’re shopping for a high-priced product, but have limited money. How to make the best use of your money? Here are some steps you can take to become a smart shopper.

Step 1. Before buying a high-cost product, think about:

·why you are buying the product

·how often and when you will use the product

·what the main use of the product is

·why you need this product now, not later

Step 2. To choose the best product, you need to research and find out:

·what companies make the product

·the differences in each company’s product

·what others say about the product

It can be very helpful to know what other people say about a product you want to buy. Product reviews often describe problems. Reviews also tell how people use the product. List product information so that you can refer to it before you decide to buy

Step 3. To find the best price for the product you want to buy, you need to compare:

·prices of the product

·brand(商标) names and store names

·places to buy your product (in stores, online, etc.)

·product labels(标签) and information

Step 4. As you get ready to buy, search your local newspaper and the Internet for special offers. Many sales are offered around holidays or at the end of a season. Wait to see if there will be a holiday or end-of-season sale before you buy. Check to see if you can get a lower price for the product you want to buy.

These steps will help you become a smart shopper. If you follow them, you should get the best deal. Remember, the more you know, the less someone can take advantage of you.

60. This is a piece of advice for those who want to buy________.

A. advertised goods                         B. goods on sale

B. online products                           D. expensive products

61. Why should you go through related product reviews before shopping?

A. To decide where to buy the product.

B. To find out why you need the product.

C. To find shops offering best price for the product.

D. To have a full knowledge of the product

62. Which of the following is the CORREST order of smart shopping?

a. Watching for sales.

b. Finding out your purpose of shopping.

c. Researching your product.

d. Making comparisons before shopping.

A. b c d a                  B. b d c a                     C. c d a b                     D. c a d b

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男性患者,40岁。2天前有冷风吹面史。今晨起床后发现口角流涎来院就诊。体检:左侧额纹变浅,左侧鼻唇沟浅,露齿时口角右歪,左眼闭合不全。

关于该病人下列描述不正确的是()

A.该病人多在起病后1一2周内开始恢复

B.脑脊液检查发现有蛋白一细胞分离现象

C.应排除后颅窝病变

D.应采取措施保护暴露的角膜

E.病因尚不完全清楚

题型:问答题 简答题

高速纺丝要求特性粘度中心值在0.63dL/g~0.68dL/g,波动值最好小于()。

A.0.01dL/g

B.0.05dL/g

C.0.10dL/g

D.0.20dL/g

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