下面关于电梯终端开关说法正确的是:()。 A.电梯终端开关也称为极限开关,是用于交流

题型:多项选择题

问题:

下面关于电梯终端开关说法正确的是:()。

A.电梯终端开关也称为极限开关,是用于交流双速电梯当限位开关装置失灵,或其他原因造成轿厢超越端站楼面100~150mm距离时,切断电梯主电源的安全装置

B.电梯终端开关也称为极限开关,是用于交流双速电梯当限位开关装置失灵,或其他原因造成轿厢超越端站楼面10~15mm距离时,切断电梯主电源的安全装置

C.电梯终端开关是电梯运行中的最后第二级安全保护装置,故其安装位置在轿厢或对重接触缓冲器前50~l00mm处为宜

D.电梯终端开关是电梯运行中的最后一级安全保护装置,故其安装位置在轿厢或对重接触缓冲器前50~100mm处为宜

考点:电气设备安装工电气设备安装工(高级)电气设备安装工(高级)题库
题型:多项选择题

三角形一条边的长度一定大于另外两条边长度的差.______.(判断对错)

题型:多项选择题

第二节:信息匹配(共5小题,每小题1.5分,满分7.5分)

下面是有关植物和园艺方面的详细信息,请阅读下面相关信息,并按照要求匹配信息。

36. (Part One) Once your plants are growing you will need to keep them happy. How do you do this and what sorts of tools will you need? Plants need water and food, but when and in what sort of quantities? This module explains the cultivation techniques necessary to keep your plants in fine fettle. There are simple basic steps you can take to ensure you cut the right stem, at the right time, in the right place.

37. (Part two) Plants lose water through their leaves all the time. It is essential to ensure there is enough to replenish the roots, otherwise they will die. In warm weather water is lost from the soil by evaporation, so watering will need to be done more often.

38. (Part Three) To keep them growing healthily, plants absorb through their roots about 30 different nutrients and minerals dissolved in water.

39. (Part Four) Pruning is basically cutting off carefully selected parts of a plant to restrict its size, persuade it to grow in a particular shape, encouraging more fruit, flowers or stems, or to remove dead or diseased material. But pruning is neither difficult nor complicated; in fact a lot of it is applying common sense! You just have to follow a few guidelines and check in a book what kind of pruning the particular plant needs. The removal of dead, diseased, broken, crossing and crowded branches is often sufficient for many plants.

40. (Part Five) A spade is your basic digging implement; use it to make holes and to dig sandy or loamy soil. Fork is perfect for digging soil that’s stodgy, such as clay, or full of stones; moving and spreading organic matter; and breaking down clods of soil…

请阅读以下相关主题,然后匹配和其相关的章节:

It tells us how to take care of our garden to make the plants and flowers fairly good.

It tells us that in order to grow well, plants also need all kinds of nutrition, and so how to feed the plants is also important.

That part tells gardeners how to do pruning that can remove the unneeded parts of many plants.

It tells the importance of watering in gardening, especially in hot summer seasons.

That part introduces the tools and different functions of various tools you may use in gardening.

This section presents where you can buy good seeds and it also offers the regular price for you.

有关章节                           主题内容  

36. Part One                       

A.how to take care of garden

37. Part two

B.how to feed the plants

38. Part Three

C.how to prune

39. Part Four

D.the importance of watering40. Part Five                      E. introduces different functions of tools

F. where you can buy good seeds

题型:多项选择题

阴寒内盛,阳气被遏,血行凝滞时,多见的舌象表现是()

A.全舌青紫

B.舌有紫色斑点

C.舌色淡红中泛现青紫

D.舌色淡紫而湿润

E.舌色紫红或绛紫而干枯少津

题型:多项选择题

以下()命令会在字段单元格内加入一个向下箭头。

A.自动筛选

B.记录单

C.分类汇总

D.排序

题型:多项选择题

综合绩效考评中,()负责提供国际结算量市场份额和外汇业务收入数据。

A.个人金融部

B.国际业务部

C.财务会计部

D.公司业务部

更多题库