调整钩高时,可采用以下方法:在钩尾框托板与牵引梁下翼板间两侧各安装1块厚度不大于()

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问题:

调整钩高时,可采用以下方法:在钩尾框托板与牵引梁下翼板间两侧各安装1块厚度不大于()的垫板。

A.5mm

B.6mm

C.8mm

D.10mm

考点:铁路货车段检修技术知识竞赛铁路货车段检修技术知识竞赛题库
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有立功表现的违反治安管理行为人可以减轻或不予处罚。 ( )

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不符合急发型过敏性休克特征的是()

A.药物注射多见

B.约占80%~90%

C.皮肤可有血管神经性水肿

D.预后较好

E.接触过敏原<30分钟内发生

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III.阅读理解

The blue tits(山雀) have been inspecting the nest-box again this year. The male is the house-hunter but the female will make the final choice. He lands at the hole and turns his head to expose his white cheeks as a signal to attract the female from where she has been feeding.

Among many birds that nest in holes, the male has a light-coloured patch on its plumage(鸟羽) which acts as signal for drawing the female’s attention to a suitable nesting-place. Unlike the blue tit, the redstart(红尾鸲) may be only the male that strikingly coloured and the female is not beautiful.

A few years ago I was lucky enough to spot a pair of redstarts in action in a Walsh wood. The male was leading an interested female to holes that he had previously(先前) checked out. He sat at the entrance of each hole and put his head on to show off his white forehead, or his head in to reveal(显露) his tail.

If the female failed to react to his visual signals, the male sometimes sang for extra effect, while gliding towards her on spread wings and tail. Once the female accepts by following the male through the hole the displays stop, you must be at the right place at the right time to watch them.

36. How do the blue tits choose their nest?

A. They choose their nest together.     

B. The male chooses their nest.

C. The house-hunter chooses their nest.

D. The female chooses their nest.

37. The writer was lucky to see ________.

A. how the male made his tricks

B. how an interested female played with the male happily

C. what the male displayed and won the female

D. that the male tried his best but failed to attract the female

38. You can spot a pair of redstarts in a Walsh wood ________.

A. at any time        B. regularly    C. in April    D. occasionally

39. The writer is probably ________.

A. a bird expert     B. a bird-hunter   C. a bird raiser   D. a scientist

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如果应收账款周转天数延长属于长期性变化,该公司从2008年末到2009年末应收账款增加了100万元,则此时该公司适合()。

A.流动资金贷款

B.短期贷款

C.中长期贷款

D.担保贷款

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井喷失控或起火后,在人员已安全撤离的条件下,如果现场条件允许,应尽量抢救()和()。

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