定量的数据分析,可以使你的分析更加准确。某高钙片(见图)的使用说明书部分内容如下

题型:计算题

问题:

定量的数据分析,可以使你的分析更加准确。某高钙片(见图)的使用说明书部分内容如下:

【配料】碳酸钙( CaCO3)、甘露醇、乳糖、淀粉、维生素D。

【规格】2.5g/片,每片中含钙0.5 g。

【食用方法】每日1次,每次1片,嚼食。

(1)碳酸钙( CaCO3)的相对分子质量为               

碳酸钙中各元素的质量比为                  

(2)若此高钙片中所含钙元素都来自碳酸钙,试计算一片该高钙片中所含碳酸钙的质量分数?(含计算过程)

(3)葡萄糖酸钙的化学式为Ca( C6 H11O7)2,其相对分子质量为430。某葡萄糖酸钙保健品每片含葡萄糖酸钙0.5 g,1片高钙片所含钙元素的质量约相当于_______片(计算结果取整数)该葡萄糖酸钙保健品所含钙元素的质量。

考点:物质组成元素的质量比化学式的写法和意义物质组成元素的质量分数化合价的求法
题型:计算题

     It's easy to make your own Internet page. The easiest way is to use a special programme called

a "web editor (编辑)". You can find these programmes on the Internet.

                                                 

     First think about some things to put on your Internet page by looking at other people's pages.

You need to put your Internet page on a bigger computer called a "host" which stores the pages

so that other people can see them. These computers are owned by special Internet companies.

Our programme may be able to help you find a host computer which you can use for free, but

some companies will charge (收费) money for this.

     To make your Internet page, start up the programme and write some text in the window, then

use the signs you can see on the computer to put in pictures and make the text larger or smaller,

and change the way your page looks. You can also put photos on your Internet page. First, you

need to put the photo in your computer, then use your mouse to move the photo to the place you

want it. Choose the correct sign for putting photos onto the page, then find the name of your photo

in your computer. When you've found it, choose that one with your mouse and put your photo on

your Internet page.

     You can also put signs on your Internet page to join it to other people's pages. Visitors to your

page can follow these signs to find out more about a subject. For example, if your page includes

some information about Jackie Chen, you could put on a sign that takes you to the page for his fan

club.

     When you have completed your Internet page, you can put it on the Internet. After you put your

page on the Internet, anyone will be able to see it.

1. What is the first thing to do to make an Internet page?

A. To buy it from a big company.

B. To get a programme from the Internet.

C. To use another person's page.

D. To make a programme for it.

2. Why do people put signs for other Internet pages on their page?

A. To get money from the other people.

B. To get money from Internet companies.

C. To give more information about something.

D. To give people ideas about Internet pages.

3. What things can you put on your Internet page?

A. Text and music.

B. Photos and films.

C. Text, signs and music.

D. Text, signs and photos.

4. What do you do when you put your page on the Internet?

A. You start up a special programme.

B. You join it to other people's pages.

C. You send it to a web editor.

D. You store it in a host computer.

题型:计算题

男性,62岁。2天前出现右上腹阵发性绞痛,伴皮肤黄染。6个月前曾行B超检查,示胆囊结石。该患者的诊断最可能是()

A.肝癌

B.胰头癌

C.胆石症

D.急性肝炎

E.急性胰腺炎

题型:计算题

现场舞台摄影一般采用()对焦方式。

A.手动对焦

B.自动对焦

C.对焦锁定

D.运用景深

题型:计算题

可以采取如下哪些方式,重新识别客户身份()

A.回访客户

B.实地查访

C.向公安、行政管理等部门核实

D.要求客户补充其他身份资料或者身份证明文件

题型:计算题

并非所有公文都具有领导与指导作用。( )

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