CFXB型“220V 1100W”电饭煲的原理图如图所示,它有高温烧煮和焖饭、保

题型:计算题

问题:

CFXB型“220V 1100W”电饭煲的原理图如图所示,它有高温烧煮和焖饭、保温两挡,通过单刀双掷开关S进行调节,R0为电热丝.当开关S接高温烧煮挡时,电路的功率为1100W,当开关S接焖饭、保温挡时,电路的总功率为22W.

求:(1)电饭煲在高温烧煮挡时,开关S应与哪个触点连接?

(2)电热丝R0的阻值多大?

(3)当电饭煲在正常焖饭、保温时电路中的电流多大?焖饭、保温10min,电热丝R0产生的热量为多少?

考点:欧姆定律及其应用
题型:计算题

It’s easy to get the sense these days that you’ve stumbled into a party with some powerful drug that dramatically alters identity. The faces are familiar, but the words coming out of them aren’t. Something has happened to a lot of people you used to think you knew. They’ve changed into something like their own opposite.

There’s Bill Gates, who these days is spending less time earning money than giving it away--and pulling other billionaires into the deep end of global philanthropy(慈善事业) with him. There’s historian Francis Fukuyama, leading a whole gang of disaffected fellow travelers away from neoconservatism. To flip-flopis human. It can still sometimes be a political liability, evidence of a flaky disposition or rank opportunism. But there are circumstances in which not to reverse course seems almost pathological(病态的). He’s a model of consistency, Stephen Colbert said last year of George W. Bush:" He believes the same thing Wednesday that he believed on Monday -- no matter what happened on Tuesday."

Over the past three years, I found people who had pulled a big U-turn in their lives. Often the insight came in a forehead-smiting moment in the middle of the night: I’ve got it all wrong.

It looked at first like a sprinkling of outliers beyond the curve of normal human experience. But when you stepped back, a pattern emerged. What these personal turns had in common was the apprehension that we’re all connected. Everything leans on something, is both dependent and depended on.

"The difference between you and me," a visiting Chinese student told University of Michigan psychologist Richard Nisbett not long ago," is that I think the world is a circle, and you think it’s a line." The remark prompted the professor to write a book, The Geography of Thought, about the differences between the Western and the Asian mind.

To Western thinking, the world is linear; you can chop it up and analyze it, and we can all work on our little part of the project independently until it’s solved. The classically Eastern mind, according to Nisbett, sees things differently: the world isn’t a length of rope but a vast, closed chain, incomprehensibly complex and ever changing. When you look at life from this second perspective, some unlikely connections reveal themselves.

I realized this was what almost all the U-turns had in common: people had swung around to face East. They had stopped thinking in a line and started thinking in a circle. Morality was looking less like a set of rules and more like a story, one in which they were part of an ensemble cast, no longer the star.

According to the text, one difference between Western and Eastern minds was that ()

A. the world in Eastern thought is a line while in Western thought is a circle

B. Western mind is more comprehensive than Eastern mind

C. Western mind is more concerned of connections

D. Eastern mind considers things more like a whole instead of separate parts

题型:计算题

储值票更新标志规定:()。

A、20分钟以内予以免费更新

B、10分钟以内予以免费更新

C、30分钟以内予以免费更新

题型:计算题

女患者,证见月经四、五十日一行,量少、色淡红,无血块,头晕眼花,心悸少寐,面色苍白,舌淡红,脉细弱。

证属 ()

A.气虚

B.血虚

C.脾虚

D.气血两虚

E.心脾两虚

题型:计算题

压力容器的安全技术档案管理应符合以下()要求。

A、不准查阅

B、专人保存

C、不准借用

D、不准增加内容

题型:计算题

扣件式钢管脚手架搭设形式有()。

A、封闭型

B、封圈型

C、开放型

D、开口型

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