电导仪是化验室用来测定电解质溶液（）的分析仪器。 A.电导 B.电流 C.电容

The word “sharp” can be _1_ to describe many different things in your home, classroom, and places of work. In this chapter, the writer _2_sharp pencils, meaning pencils with a very fine _3_.The writer does not like dull pencils.

We can also use “sharp” to describe the blades of knives. Knives also have points. We can use “sharp” to describe a _4_ kind of point,_5_as the sharp points of kitchen and steak knives. Scissors have blades, too, and we can describe these blades as sharp or dull. Furthermore, the points of scissors are _6_ sharp or rounded _7_ on the kind of scissors. Some tools, such as saws, scrapers, and garden tools, also have blades. We can use the words “sharp” and “dull” to describe the blades of these tools, _8_.Sharp knives, scissors, and tools are_9_to use. They cut things easily and quickly, without effort.

“Sharp” can be used to describe the edges of furniture and _10_some containers. For example, the edge of a table or desk can be _11_.In addition; we can describe the edge of _12_ open can as sharp. The top of a can is sometimes sharp_13_ to cut your hand. A piece of _14_ from a broken jar or bottle is_15_very sharp.

_16_we sometimes use “sharp” to describe people. A person who appears sharp is very well _17_.A person who is sharp, on the other hand, is intelligent, smart, and_18_ learn and understand.

To summaries, “sharp” can be used to describe many kinds of _19_ that have blades, points, and edges. When we used it to describe people, it can mean nice looking, well dressed, or intelligent. It is an expensive word _20_ it can be used in many different ways.

1. A. written         B. used         C. seen           D. taken

2. A. talks about                      B. takes care of

C. doesn't like to mention            D. makes up his mind to

3. A. sharp          B. color         C. point          D. edge

4.  A. some         B. any          C. only           D. certain

5. A. so           B. as soon         C. such           D. or

6. A. either        B. neither          C. too            D. very

7. A. working      B. which are       C. is             D. spending

8. A. too          B. even           C. either          D. ever

9. A. difficult      B. easy            C. interesting      D. clean

10. A. for         B. with            C. of             D. at

11. A. seen        B. sharp           C. smooth         D. hard

12. A. an          B. a              C. the             D.\

13. A. so as        B. in order        C. so that          D. enough

14. A. news        B. glass          C. information      D. advice

15. A. again        B. quite          C. rather           D. ordinarily

16. A. However     B. Finally        C. Therefore        D. In this way

17. A. prepared     B. dressed        C. mannered        D. served

18. A. easy to      B .is to           C. to              D. quick to

19 .A. funny things  B. knives        C. objects          D. containers

20. A. because      B. even if        C. though          D. not only

岸边式取水物筑物适用于( )，且地质条件较好，水位变化幅度不大的取水河段。

A．岸边平坦，流速不大，岸边有足够场地
B．岸边较陡，主流近岸，岸边有足够水深
C．岸边较陡，主流近岸，岸边有足够场地
D．岸边平坦，主流远离取水河岸，岸边有足够场地

两周休工(学)率的计算公式是

A．调查前两周内因病休工(学)人(次)数/调查患者数×100%

B．调查前两周内因病休工(学)人(次)数/需住院患者数×100%

C．调查前两周内因病休工(学)人(次)数/需就诊患者数×100%

D．调查前两周内因病休工(学)人(次)数/已住院患者数×100%

E．调查前两周内因病休工(学)人(次)数/调查人数×100%

阅读以下关于变更的叙述，回答问题1至问题3。【说明】在一个正在实施的系统集成项目中出现了下述情况：一个系统的用户向他所认识的一个项目开发人员抱怨系统软件中的一项功能问题，并且表示希望能够进行修改。于是，该开发人员就直接对系统软件进行了修改，解决了该项功能问题。针对这样一种情况，请分析如下问题。

请用150字以内的文字，说明上述情况中存在着哪些问题？