凡是不锈钢材料都应该单独进行焊接工艺评定。()

题型:判断题

问题:

凡是不锈钢材料都应该单独进行焊接工艺评定。()

考点:高级电焊工考试高级电焊工考试题库
题型:判断题

下列过程中,发生了物理变化的是(  )

A.铁丝生锈

B.一定条件下将石墨转变为金刚石

C.白磷在空气中自然

D.红墨水中加入木炭粉后液体褪色

题型:判断题
阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项。
There was a boy who was walking home from school when he saw a large, tempting (attracting) apple on one of the branches of an apple tree hanging out over a tall fence. The  boy wasn’t much of a fruit-eater, _36_ a bar of chocolate if given the choice, _37_, as they say, the forbidden fruit can be tempting. Seeing the apple, the boy wanted it. The more he looked at it, the _38_ he felt and the more he wanted that apple.
He stood on tiptoe, _39_as high as he could, but even at his tallest _40_he was unable to touch it. He began to _41_ up and down, as high as he could, at the _42_of each jump stretching his arms to get the apple. Still it remained out of _43_.
Not giving up, he thought, if only he had something to _44_on. His school bag wouldn’t give enough height and he didn’t want to _45_the things inside, like his lunch box, pencil box, pencil case, and Gameboy. Looking _46_, he hoped he might find an old box, a rock, or, _47_ luck, even a ladder, but it was a tidy neighborhood and there was nothing he could use.
He had tried everything he could think to do. _48_seeing any other choices, he gave up and started to walk_49_. At first, he felt angry and disappointed thinking about how hungry he had become from his _50_, and how he really wanted that apple. The more he _51_like this, the more unhappy he became.
_52_, the boy of our story was a pretty smart guy, even if he couldn’t get what he wanted. He started to say to himself, “This isn’t_53_.I don’t have the apple and I’m feeling sad as well. There is _54_ more I can do to get the apple— that is unchangeable —but we are supposed to be able to _55_our feelings. If that is the case, what can I do to feel better?
小题1:
A.offeringB.preferringC.receivingD.allowing
小题2:A so             B then            C. or              D. but
小题3:
A.sadderB.hungrierC.angrierD.tastier
小题4:
A.stretchingB.swingingC.expandingD.pulling
小题5:A. strength       B. height              C length           D. range       
小题6:
A.jumpB.lookC.walkD.glance
小题7:
A.tipB.stageC.levelD.top
小题8:
A.touchB.handC.reachD.sight
小题9:
A.putB.standC.getD.hold
小题10:
A.shakeB.breakC.takeD.strike
小题11:
A.upB.forwardC.aroundD.down
小题12:
A.withB.forC.onD.of
小题13:
A.AfterB.WithoutC.ThroughD.Upon
小题14:
A.awayB.backC.upD.down
小题15:
A.wishesB.beliefsC.goalsD.efforts
小题16:
A.imaginedB.triedC.claimedD.thought
小题17:
A.ThereforeB.MoreoverC.HoweverD.Otherwise
小题18:
A.skilfulB.helpfulC.cheerfulD.harmful
小题19:
A.somethingB.nothingC.anythingD.everything
小题20:
A.expressB.forgetC.changeD.describe
题型:判断题

试述环毛蚓与土壤穴居生活相适应的结构特点。

题型:判断题

数据库管理系统通常提供授权功能来控制不同用户访问数据的权限,这主要是为了实现数据库的( )。

A.可靠性

B.一致性

C.完整性

D.安全性

题型:判断题

如果原始凭证发生错误应由出具单位进行更正,并在更正处加盖印章。( )

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