请分析判断配电装置中安全净距的含义及带电距离的确定和校验。配电装置中的安全净距刀值,

题型:单项选择题

问题:

请分析判断配电装置中安全净距的含义及带电距离的确定和校验。

配电装置中的安全净距刀值,是两组平行母线之间的安全净距,它是考虑检修人员和工具的活动范围,它由下列何式决定?

A.A1+75cm;

B.A1+7cm+3cm;

C.A1+230cm+20cm;

D.A1+180cm+20cm。

考点:注册电气工程师发输变电专业注册电气工程师(发输变电)考试7
题型:单项选择题

Mom was right! If you say thank you, for even the smallest gift or slightest show of kindness, you’ll feel happy.

Gratitude, says Robert A. Emmons, a professor or psychology at the University of California, is an important element of happiness. In his recent took, Thanks!, Emmons uses the first major study on gratitude to prove mom’s point. In acknowledging and developing this much-ignored expression of thankfulness, he explains how people have benefited---- even improved their health.

As one of the leading scholars of the positive psychology movement, he admits gratitude may be difficult to express. He advises you to begin by admitting that life is good and full of events and elements that make daily existence a wonder. Second, recognize that the source of life’s goodness is more than just you. That source may be your mom, a friend, partner, child, colleague at work or play, or any combination of these.

Gratitude is always other-directed, notes Emmons. You can be pleased or angry with yourself and feel guilty about doing something wrong, but you can never be grateful to or for yourself.

Expressing gratitude shouldn’t be a reaction; it should be a state of mind. To feel grateful when life is a breeze and you have more than you need is easy. To feel grateful in time of crisis---- anger, hatred and bitterness----is easier. Also, too many people are aware of life’s blessings only after these are lost.

It’s crisis and chaos ---- danger, disease, disability and death ---- that bring many individuals to realize just how dependent they are on others. Yet it’s the way each of us begins life and ends it. It’s too bad that so many people waste those decades in between labouring under the illusion they are self-sufficient, says Emmons.

The abundance of voices expressing gratitude from his studies of individuals with chronic health problems is many. But Emmons goes beyond his “groundbreaking” science to make his case for gratitude by including the inspirational writings of philosophers, novelists and saints, as well as the beliefs of various religions and their respective scriptures. Taken together, these observations are summed up quite nicely by famous humanist Albert Schweitzer, who said the secret of life is “giving thanks for everything.”

To enable and embrace gratitude, Emmons encourages the readers of Thanks! To keep a gratitude diary. He even provides easy-to-follow directions on how to practice and develop gratitude.

I’m not a reader or advocate of self-help books, but I am thankful for the reference I found in a newspaper article to the research Emmons was conducting on gratitude involving organ donors and recipients. The chance discovery led me to this book.

Mom implied that kindness seems to find its way back to the giver because life really is all about giving, receiving and repaying. So I’ll pay attention to her professional advice and say: Thank you, professor Emmons.

小题1:What is the text mainly discussed?

A.There are many ways of being thankful.

B.Gratitude is important to happiness.

C.Mom is great for her being thankful.

D.Being thankful will keep you fit.小题2:The author mentions Robert A. Emmons’ book Thanks! In order to prove that ___.

A. Professor Emmons supports mom’s study on psychology.

B. mom is as great a psychologist as Professor Emmons.

C. Professor Emmons is a famous psychologist.

D. mom is right about her viewpoint on gratitude.

小题3:It will be easier for you to feel grateful when ___________.

A.you live a comfortable life

B.you receive gifts on your birthday

C.you get help during your hard times

D.you are congratulated on your success小题4:What is the opinion of Professor Emmons?

A.It is enough to thank others orally.

B.Whether you are thankful is always up to you.

C.Remember to be thankful anytime and anywhere.

D.It is easier to be thankful for yourself than for others.小题5:In the writer’s opinion, Emmons’ book Thanks! On gratitude is _______.

A.one-sided

B.reasonable

C.puzzling

D.helpful

题型:单项选择题

内燃机工作时,内能转化为机械能的是_____ 冲程,机械能转化为内能的是_____ 冲程,_____ 冲程中,气缸内气体内能最小。

题型:单项选择题

某受测者在韦氏成人智力测验中言语智商为102,操作智商为110。已知两个分数都是以100为平均数,15为标准差的标准分数。假设言语测验和操作测验的分半信度分别为0.87和0.88,则该受测者的操作智商( )于言语智商。

(A) 低
(B) 不显著高
(C) 等
(D) 显著高

题型:单项选择题

有抗震设防要求的框架结构,其纵向受力钢筋的强度当设计无具体要求时,对一、二级抗震等级,检验所得的强度实测值应符合()规定。

A.钢筋的抗拉强度实测值与屈服强度实测值的比值不应小于1.25

B.钢筋的屈服强度实测值与屈服强度标准值的比值不应大于1.3

C.钢筋的抗拉强度实测值与屈服强度实测值的比值不应小于1.3

D.钢筋的屈服强度实测值与屈服强度标准值的比值不应大于1.25

E.钢筋的抗拉强度实测值与屈服强度实测值的比值不应小于1.4

题型:单项选择题

下列植物的果实不属于假果的是()

A.梨

B.苹果

C.桃

D.菠萝

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