设计实验证明,当电流一定时,电阻两端的电压与电阻成正比。(5分) (1)画出实验

题型:实验题

问题:

设计实验证明,当电流一定时,电阻两端的电压与电阻成正比。(5分)

(1)画出实验电路图。

(2)写出主要实验步骤。

(3)画出数据表格。

考点:欧姆定律及其应用
题型:实验题
One day I decided to quit.I quitted my job, my relationship, my spirituality. I wanted to quit my life.
I went to the     to have one last talk with God. "Can you give me one good    not to quit?" His answer surprised me.
"Look around. Do you see the fern(蕨类植物) and the bamboo? When I planted their seeds, I took good care of them.The fern quickly grew from the earth.     nothing came from the bamboo seed. During the following three years, the fern grew more plentiful. And    , nothing came from the bamboo seed. But I did not quit on the bamboo. Then in the fifth year a      sprout(新芽) emerged from the earth. Compared to the fern it was     small and insignificant. But just 6 months later the bamboo     to over 100 feet tall. It had spent the five years growing    . Those roots made it strong and gave it     it needed to survive.I wouldn’t give any of my creations a challenge it could not    .”
He said to me .”All this time you have been struggling , you have ___been growing roots . I would not quit on the bamboo.____will I ever quit on you .Don’t ____yourself with others .The bamboo had a different ____from the fern .Yet they both make the forest beautiful .Your time will ___ .You will rise high!”
"How high should I rise?" I asked.
"How high will the bamboo rise?" He asked     .
"As high as it can?" I    .
"Yes," He said. "Give me glory     rising as high as you can."
I left the forest and bring back this story. I hope it can help you see that God will never    on you. Never regret a day in your life. Good days give you happiness. Bad days give you   . Both are necessary to life.
小题1:
A.farmB.heavenC.bushes D.woods
小题2:
A.reasonB.senseC.responseD.explanation
小题3:
A.EvenB.InsteadC.YetD.Rather
小题4:
A.againB.always C.everD.often
小题5:
A.thinB.tinyC.weakD.short
小题6:
A.largelyB.entirelyC.seeminglyD.probably
小题7:
A.raised B.providedC.roseD.produced
小题8:
A.fruits B.leaves C.seedsD. roots
小题9:
A.whichB.whereC.howD.what
小题10:
A.presentB.exploreC.handle D.offer
小题11:
A.particularlyB.actually C.merely D.obviously
小题12:
A.EitherB.So C.NeitherD.As
小题13:
A.furnishB.associateC.connect D.compare
小题14:
A.purposeB.recognitionC. creditD.possibility
小题15:
A.goB.comeC.getD.leave
小题16:
A.in natureB.in exchangeC.in respectD.in turn
小题17:
A.questionedB.requiredC.requested D.remarked
小题18:
A.fromB.withC.by D.for
小题19:
A.cut upB.give up C.break upD.pick up
小题20:
A.experiencesB.strengthsC.awardsD.ambitions
题型:实验题

在市政供水阀门处于完全开启状态时,每月对()的压差进行检测,且应符合相关规定。

A.报警阀 

B.控制阀 

C.末端试水阀 

D.倒流防止器

题型:实验题

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A.JMeter

B.LoadRunner

C.JTest

D.JBuilder

题型:实验题

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A.0

B.1000

C.5000

D.10000

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