三绕组降压变压器绕组由里向外的排列顺序是()。A、高压、中压、低压 B、低压、中压、

题型:单项选择题

问题:

三绕组降压变压器绕组由里向外的排列顺序是()。

A、高压、中压、低压

B、低压、中压、高压

C、中压、低压、高压

D、低压、高压、中压

考点:变电站值班员考试变电站值班员(中级)变电站值班员(中级)题库
题型:单项选择题

读某地“气温与降水量月份分配图”,回答问题。

(1)该地的位置在南北半球的________半球,气候类型是_____________________。

(2)该气候类型的分布规律是_____________________________________,其成因是_________________

    __________________。

(3)与该气候类型分布同纬度的亚欧大陆东部是____________气候,其特点是______________________

    _________________________。

题型:单项选择题

高压配电屏的网门,当合闸送电后就自动锁上,维修时只有拉闸停电后网门才能打开以防触电,遵循的是()。

A.设置薄弱环节原则 

B.闭锁原则

C.取代操作人员的原则

D.禁止、警告和报警原则

题型:单项选择题

Wild Blue is a none-of-a-kind, geography-oriented exploration and adventure center for children aged 3 through 10.Our mission is to immerse(使沉浸于)children and their families in experiences that relate to the people,places and natural elements of the wonderful planet we live on.All our programs are developed and led by our own world-class team of explorers and educators.The following is a brief introduction to some of our classes:    

Global Kitchen

All over the world,people gather together to share meals.In this class, children will learn about the cuisine of a foreign country or region while they create a delicious snack. Recipes will be kid-friendly, and use ingredients(原料)from the country of origin.Your child will learn healthy,easy-to-create recipes he can bring home to share!

Documentary Filmmaking

This 50-minute video documentary film class is specially designed for our 6and 7 years old explorers.Classes will concentrate on the basics of visual storytelling and include subject discovery, story development, storyboard, filming,editing and presenting.Participants will work as a team to produce their own documentary, which will then be screened for friends and family at the course’s conclusion.

Exploring the Wonders of Earth

Designed specifically with our youngest explorers in mind, this semester-long program will expose your child to a wide variety of exciting scientific events that occur on our planet,from chocolate melting,to volcanoes erupting,to seeds sprouting.Through this course children will begin to develop an awareness of the science that makes the earth a marvelous place.

A World of Arts and Crafts

Whether you are seeking to simply extend your child’s time at Wild Blue or looking for a favorite pastime,we offer our own unique version of arts and crafts.Focusing on using found objects,this course encourages children to draw creative inspiration from cultures around the world.This course is available,upon request, as an additional class in your child’S schedule.

68.We can know from the passage that Wild Blue      

A.aims to urge people to protect the environment

B.is specially designed for children and teens

C.focuses on the relationship between people

D.permits adults to participate in its activities

69.Children who study documentary filmmaking     .

A.are supposed to work in teams

B.have to sign up with several friends

C.will learn everything about filmmaking

D.will make a documentary on their family

70.Those who take the“Exploring the Wonders of Earth” course can       .

A.learn to make chocolate

B.see volcanoes erupting in person

C.know more about exciting scientific events

D.make the world more marvelous

71.A World of Arts and Crafts is designed       .

A.for new beginners with artistic talent

B.for children to improve their drawing style

C.to help children learn about arts and cultures

D.to teach children how to spend their spare time

题型:单项选择题

如图所示,绷紧的传送带始终保持着大小为v=4m/s的速度水平匀速运动,一质量m=1kg的物块无初速度地放到皮带A处,物块与皮带间的动摩擦因数μ=0.2,A、B之间距离为s=6m,则物块从A运动到B的过程中摩擦力对物块做功________ J(g=10m/s2)。

题型:单项选择题

30岁,男性,10个月前胫腓骨闭合性骨折,行手法复位,石膏外固定,现原骨折处有反常活动,X线显示胫骨上下端髓腔被硬化骨封闭,骨折端有2mm间隙,并向后成10°角,其治疗应采用

A.手法复位,小夹板固定

B.手法复位,石膏外固定

C.切开复位,外固定

D.切开复位,内固定外加外固定

E.切开复位,骨移植.内固定外加外固定

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