氧化锆氧量计是由()组成的。 A.锆管 B.锆头 C.转换器 D.二次表

题型:多项选择题

问题:

氧化锆氧量计是由()组成的。

A.锆管

B.锆头

C.转换器

D.二次表

考点:火力发电厂考试火电厂热工考试火电厂热工考试题库
题型:多项选择题

在如图所示的实验电路中,R1、R2是两个电阻圈,R1的阻值大于R2的阻值,电阻圈上各夹一根火柴。接通电路,一会儿观察到两电阻圈上的火柴先后被点燃。

(1)上述现象说明电流通过电阻时会产生热,将               能转化为             能。

若继续进行以下实验:

(2)断开开关,待两个电阻圈完全冷却,再重新各夹一根火柴,使变阻器接入电路的阻值较大。接通电路,经历时间t1,R1上的火柴先被点燃。这说明,在电流和通电时间相同的情况下,__________越大,产生的               越多。

(3)断开开关,待两个电阻圈完全冷却,再重新各夹一根火柴,使变阻器接入电路的阻值较小。接通电路,经历时间t2,R1上的火柴先被点燃,比较发现t2小于t1。由此推理,在电阻和通电时间相同的情况下,_________越大,产生的                越多。

题型:多项选择题

劳动合同与集体合同既有联系又有区别。下列关于两者异同点的表述,哪些是正确的?

A.签订集体合同的当事人一方是代表全体劳动者的工会劳动者推举的代表

B.劳动者个人与企业订立的劳动合同中劳动条件和劳动报酬标准可以低于集体合同的规定

C.劳动合同和集体合同都是要式合同,都必须以书面形式签订,但备案、鉴证或公证都不是订立合同的必要条件

D.根据特别优于普通的原则,个人劳动合同的效力优先于集体合同的效力

题型:多项选择题
Mr. Hadley was my 6th grade teacher. I was a tall thin girl weighing barely a hundred pounds. I ended up taking a lot of  36 especially from the boys, because of my appearance. I became an extremely  37 young lady.
One day  38 in the 6th grade class was told by Mr. Hadley that we would be  39 to stand up in front of the class and read the  40 that we had completed.
When my turn came, I  41 to stand up in front of all those students and  42 to their tricks. Mr. Hadley came over to me and again  43 me to read my report. I gave it back to him. He walked to the front of the  44 and said, "Yvonne has a very good report here and I think everyone  45 to hear her read it. If I hear anyone making  46 noises or making fun of her in any way, I will let you fail right here and now. Understood?"
Mr. Hadley walked back to me and  47 me the paper, asking me to go to the front of the class. I walked to the front of the class on legs  48 were shaking and I felt a(n)  49 in my chest. Everyone were all quiet, including those boys. I stood there trying to gain  50 .
Mr. Hadley walked over to me putting his arm around me, "You can do it. I have  51 in you!" His words helped calm me. I  52 the report and instead of the kids laughing at me and  53 me, they all stood up and clapped their hands.
From that day on the kids never made fun of me again and some  54 made friends with me. I continued to be quite shy all through school  55 from that day on I knew if I had to stand up in front of class again. I could do it.
小题1:
A.exerciseB.interestsC.troubleD.tricks
小题2:
A.braveB.shyC.gracefulD.selfish
小题3:
A.someoneB.everyoneC.noneD.anyone
小题4:
A.allowedB.requiredC.advisedD.warned
小题5:
A.newspapersB.reportsC.experiencesD.texts
小题6:
A.refusedB.decidedC.promisedD.pretended
小题7:
A.show offB.look backC.open upD.put down
小题8:
A.askedB.forcedC.orderedD.permitted
小题9:
A.teacherB.classroomC.blackboardD.class
小题10:
A.likesB.hatesC.needsD.dares
小题11:
A.quietB.strangeC.specialD.little
小题12:
A.leftB.droppedC.offeredD.handed
小题13:
A.whichB.whatC.whereD.that
小题14:
A.rabbitB.ideaC.warmthD.coldness
小题15:
A.strengthB.excuseC.calmD.encouragement
小题16:
A.dependenceB.supportC.confidenceD.result
小题17:
A.readB.recitedC.announcedD.described
小题18:
A.looking down uponB.making fun of
C.losing interest inD.breaking away from
小题19:
A.definitelyB.fortunatelyC.surprisinglyD.actually
小题20:
A.butB.andC.soD.though
题型:多项选择题

太阳能是一种无污染能源,查资料获悉,在地球表面,晴天时垂直于阳光的表面接收到的辐射热为1.2×103J/(m2·s),太阳能热水器,可将接收到的辐射热的40%用来升高水温,热水器垂直接受面积为1.05m2,夏季,平均每天晒4h,其水箱中50kg的水一天最多能吸收                   J的热量,水温最多能升                    

题型:多项选择题

当现场出现八号风球时,需要()。

A、清理户外作业现场

B、加固户外高空作业平台

C、中止一切户外高空和户外水上作业

D、中止一切户外作业

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