精加工与粗加工相比,刀具应选用较大的前角和后角。

题型:判断题

问题:

精加工与粗加工相比,刀具应选用较大的前角和后角。

考点:机械工程师第九章机械制造基础第九章机械制造基础题库
题型:判断题

某建设工程物资采购合同,采购方向供贷方交付定金4万元。由于供贷方违约,按合同约定计算的违约金为10万元,则采购方有权要求供贷方支付( )万元承担违约责任。

A.4
B.8
C.10
D.14

题型:判断题

抗原在机体中不可能诱导出现()

A.免疫耐受

B.超敏反应

C.自身免疫性疾病

D.免疫缺陷

E.免疫排斥

题型:判断题
There once was a place  36  all the people were happy and  37 . Everyone was friendly and neighborly. Even the dogs and cats  38  together.
Then one day a stranger was seen  39  toward the village: a tall, tall stranger. As the stranger, who was a giant,  40  closer and closer, the people all ran into their houses and wouldn't come out.
The giant  41  the village. He was enormous, towering over everything.  42  a little girl stepped out on her porch. She jumped down from her porch. Her family yelled, "STOP! COME BACK! That's a giant!" But she didn't stop. She began to walk  43  the giant.
The strangest thing  44  . As the child walked toward the giant, he grew  45  . Soon he was the same size as the girl. As she came beside the giant, she  46  him. She stooped down and gently  47  the giant up in her hands, asking, "What's your name?"
The giant whispered, "My name is F-E-A-R! Help me!! I have a terrible  48  . I guess I look strange. When I meet people they are afraid of me. And when people are afraid of me, I suddenly grow into a giant and everybody runs away from me. YOU are not afraid of me, so I stayed small. Do you  49  it? It's crazy! Please help me!"
"I can take you for a walk through our village," the girl responded. "I want everyone to hear of your problem. When they know the truth, they will no  50  be afraid of you. While we are going from house to house you can look at me  51  , and then you will stay the same size as you are now.
"But  52  we go, let's change your name. What do you want to be called? YOU should not be called FEAR, because YOU are not afraid. It's the people who look at you  53  fear you. That's what causes you to grow into a giant."
"Will you hold my hand  54  ? If I get scared I'll shut my eyes. Oh, and will you please call me  55  ." 
小题1:
A.whichB.for whichC.whenD.where
小题2:
A.satisfyingB.contentC.sadD.miserable
小题3:
A.playedB.fightedC.quarreledD.laughed
小题4:
A.walkB.walkingC.walkedD.having walked
小题5:
A.comingB.to comeC.cameD.having come
小题6:
A.destroyedB.cameC.pulled downD.entered
小题7:
A.For the momentB.All of a sudden
C.In the balanceD.In other words
小题8:
A.towardB.inC.onD.by
小题9:
A.occurred toB.occurringC.happenedD.take place
小题10:
A.bigger and biggerB.weaker and weaker
C.narrower and narrowerD.smaller and smaller
小题11:
A.towered overB.was under the shadow of
C.was afraid ofD.fighted against
小题12:
A.broughtB.pickedC.setD.put
小题13:
A.disasterB.situationC.problemD.catastrophe
小题14:
A.receiveB.getC.attainD.obtain
小题15:
A.moreB.longerC.lengthD.much
小题16:
A.for a whileB.in a minuteC.all the timeD.the whole day
小题17:
A.untilB.afterC.beforeD.when
小题18:
A.whatB.whichC.whoD.whom
小题19:
A.gentlyB.slightlyC.abruptlyD.delightly
小题20:
A.ENEMYB.FOEC.PALD.OPPONENT
题型:判断题
如图所示,理想变压器原线圈接u=220sin100πt (V)的 正弦交流电源,图中电流表内阻不计.副线圈接入“110V,60W”灯泡一只,且灯光正常发光.下列说法正确的是(   )

A.电流表的示数为3/11 A

B.通过灯泡的电流的频率为50Hz

C.电流表的示数为3/22 A

D.理想变压器原、副线圈匝数之比为2:1

题型:判断题

男患,47岁,发现右上肢逐渐无力6个月,尿潴留3个月。查体:右上肢肌萎缩,肌力3级,左上肢肌力4级,双下肢肌力4~5级;双上肢及肩背部痛觉消失,触觉存在,双侧Babinski征(+)。诊断考虑为()。

A.髓外硬膜外病变

B.髓内病变

C.后角病变

D.前角病变

E.髓外硬膜内病变

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