简述刀具材料的基本要求。

题型:问答题 简答题

问题:

简述刀具材料的基本要求。

考点:数控机床操作工考试数控机床操作工考试题库
题型:问答题 简答题

阅读下列短文,从文后所给A、B、C、D四个选项中选出一个最佳答案。
John Thomas was an 18-year-old student, but he had been a famous champion (冠军).  Everybody at Boston University liked this tall, quiet boy. Once he was hurt, everybody at Boston University was  36  . People all over the country  37  about John Thomas and often asked, "Will he ever jump again ?"
John' s mother went to the hospital to see her son. She looked at his 38 leg. Then she looked into his  39  .She knew what her son would  40 . "You're going to jump again, John, I know it," she said. "  41  will be all right. "
If John hoped to jump again, he would have a  42  to do. He began at once. Even in his hospital bed John started to exercise. He used a wheel(轮子) and other metal things. Soon his  43  looked like a machine shop!
It was May when John  44  the hospital. "Is it all right if I go camping( 宿营) this summer?" he asked the doctors.
" Yes," the doctors said.  " But take it easy on that foot. "
John took only  45 walks at first. He was taking it easy on his foot. But not on anything else. He went swimming and did other kinds of exercises. He exercised  46  his body cried for a rest. Some days later, he exercised a little  47  . In late summer John went back to  48  . He asked if he could practise with the football team. Football wasn't his favorite, but he had to get that leg  49  again! He worked hard. "No one pushed him as hard as he pushed himself," said one of his friends. "To  50 a champion fighting back is a wonderful thing to watch. ":
小题1:
A.sorryB.afraidC.aloneD.tired
小题2:
A.thoughtB.talkedC.heardD.moved
小题3:
A.brokenB.lostC.missingD.dead
小题4:
A.faceB.footC.eyesD.leg
小题5:
A.makeB.useC.agreeD.do
小题6:
A.NothingB.AnythingC.SomethingD.Everything
小题7:
A.littleB.lotC.fewD.bit
小题8:
A.chairB.classroomC.homeD.bed
小题9:
A.reachedB.calledC.leftD.found
小题10:
A.shortB.longC.quickD.fast
小题11:
A.afterB.ifC.untilD.when
小题12:
A.laterB.betterC.moreD.less
小题13:
A.schoolB.hospitalC.shopD.church
小题14:
A.thickB.strongC.straightD.hard
小题15:
A.lookB.hearC.knowD.see
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我国公安机关依法保护人民的民主权利和其他合法权益的社会效能是( )。

A.专政职能
B.经济职能
C.文化职能
D.民主职能

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在网络协议中,规定通信双方要发出什么控制信息,执行的动作和返回的应答部分称为

A.语法部分

B.语义部分

C.定时关系

D.以上都不是

题型:问答题 简答题

关于黄金下列说法正确的有()。

A.交易所对自然人免收仓储费。

B.交易所资金清算到会员,实物负责到客户。

C.黄金一旦提货出库,就不能再入库。

D.黄金的运保费用目前为0.07元/克

题型:问答题 简答题

根据我国法律规定,下列人员中不享有选举权的是()

A.精神病患者

B.受到行政拘留处罚者

C.依法被剥夺政治权利者

D.旅居国外的我国公民

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