为改善低碳钢加工性能,应采用()热处理工艺。 A.正火 B.退火 C.淬火 D.回火

题型:单项选择题

问题:

为改善低碳钢加工性能,应采用()热处理工艺。

A.正火

B.退火

C.淬火

D.回火

考点:加工中心操作工考试中级加工中心操作工中级加工中心操作工题库
题型:单项选择题

D触发器具有锁存数据的功能。

题型:单项选择题
A farmer had some young dogs to sell. He made an advertisement and began to nail (钉) _36 into the wall. As he was knocking the last one into the wall, he _37 a pull on his coat. He looked   38  and found a little boy.
“Mister,” he said, “I want to _39 one of your dogs.”
“Well,” said the farmer, as he  40 the sweat (汗水) off his neck, “these dogs come from__41  parents and cost plenty of money.”
The boy   42 _his head for a moment. Reaching deep into his pocket, he pulled out a handful of   43  and handed them to the farmer. “I’ve got thirty-nine cents. Is that   44  to take a look?”
“Sure,” said the farmer.
Then he let out(发出) a   45  . “Here, Dolly!” he called.
Dolly ran out from the doghouse, __46  by four little dogs. The boy’s eyes danced   __47_  .
As the dogs ran to the fence (篱笆), the boy noticed something else moving _48  inside the doghouse. Then another little dog   49 . This one was even smaller, walking with  50  to the others, doing its best to catch up with them.
“I   51  that one,” the boy said, pointing to the smallest and  52 developed dog.
The farmer said, “Son, you don’t want that dog,   53  he will never be able to run and play with you.”
Hearing that, the boy stepped back, and began rolling up(卷起) one leg of his  54 . A steel brace (铁的支撑板) appeared running down his leg connecting itself with a  55 made shoe. He said to the farmer, “You see, I don’t run too well myself, and he will need someone who understands.”
小题1:
A.itB.themC.himselfD.dogs
小题2:
A.smeltB.feltC.touchedD.saw
小题3:
A.backB.insideC.downD.up
小题4:
A.raiseB.keep C.affordD.buy
小题5:
A.tookB.carriedC.removedD.moved
小题6:
A.fineB.specialC.ordinaryD.natural
小题7:
A.fellB.droppedC.raisedD.rose
小题8:
A.billsB.notesC.coinsD.dollars
小题9:
A.rightB.enoughC.niceD.good
小题10:
A.soundB.noiseC.voiceD.whistle
小题11:
A.followedB.runC.caughtD.hurried
小题12:
A.with careB.with joyC.in surpriseD.in danger
小题13:
A.quicklyB.violentlyC.slowly D.happily
小题14:
A.disappearedB.wentC.appearedD.jumped
小题15:
A.careB.guideC.helpD.difficulty
小题16:
A.loveB.likeC.preferD.want
小题17:
A.mostB.leastC.muchD.very
小题18:
A.becauseB.andC.so D.but
小题19:
A.legs B.armsC.trousersD.coats
小题20:
A.beautifullyB.speciallyC.powerfullyD.wonderfully
题型:单项选择题

某建设项目向银行一次贷款300万元人民币,年利率10%,贷款期限为5年,按复利计算5年末需偿还银行本利和( )万元。

A.439.23

B.531.48

C.584.61

D.483.15

题型:单项选择题

在刺激变化时所产生的最小可觉差异称为______。

A.感受性
B.绝对感觉阈限
C.差别感觉阈限
D.最小可觉差

题型:单项选择题

清代学者陶煦说:“金宝庐舍,转瞬灰烬,惟有田者,岿然而独无恙。故上至绅富,下至委巷工贾胥吏之俦,赢十百金,即莫不志在良田。”对此现象,理解错误的是()

A.农本思想及政策所导致

B.促进了自然经济的解体

C.使工商业发展缺乏资金

D.“以末致富,以本守之”已成社会风气

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