井下低压总检常用漏电保护方式为()。 A.附加直流电流 B.零序电压 C.零序电流

题型:单项选择题

问题:

井下低压总检常用漏电保护方式为()。

A.附加直流电流

B.零序电压

C.零序电流

D.零序电阻

考点:煤炭矿山职业技能鉴定考试井下变配电工井下变配电工题库
题型:单项选择题

男性,29岁,高处坠落2小时后送医院,主诉胸背部疼痛,双下肢不能活动。

首先应考虑的诊断是

A.骨盆骨折

B.脊柱骨折

C.脊髓损伤

D.股骨骨折

题型:单项选择题

.

第二节:完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,掌握其大意,然后从31-50各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该选项标号涂黑。

In the early 1800’s, a boy named John lived in an orphanage (孤儿院) with several other children. Every day was  31  working and Christmas was the one day of the year  32  the children did not work and received a gift — an orange. The children  33  it so much that they kept it for weeks, and even  34 — smelling it,  35  it and loving it. Usually they tried to preserve(保护) it for so  36  that it often went bad before they ate it. 

This year John knew he would soon be  37  enough to leave. He would save the orange until his birthday in July. If he preserved it  38 , he might be able to eat it on his birthday. 

Christmas day finally came. The children were so  39  as they entered the dining hall. In his excitement, John knocked over something, causing a big  40 . Immediately the master shouted, “John, leave the hall and there will be no orange for you.” John's heart  41 . He turned and ran back to the  42  room so that the children wouldn’t see his tears. 

Then he heard the door open and the children entered. Little Elizabeth with a  43  on her face held out her small hands. “Here John,” she said, “this is for you.” As John  44  his head, he saw a big juicy  45  all peeled and quartered … Each child had sacrificed(舍弃) their own orange by 46  a quarter and had created a big, beautiful orange for him. 

John never forgot the sharing, love and personal  47  his friends had shown him that Christmas day.  48  that day, after he became rich, every year he  49  send oranges all over the world to children everywhere. His  50  was that no child would ever spend Christmas without a special Christmas fruit! 

31. A. forced  B. passed C. taken  D. spent

32. A. as  B. when  C. while  D. which

33. A. needed  B. wanted       C. valued D. liked

34. A. months B. days    C. years   D. seasons

35. A. tasting  B. watching    C. pressing     D. touching

36. A. much    B. soon   C. long    D. far

37. A. old       B. strong C. tall     D. experienced

38. A. seriously      B. carefully    C. secretly      D. softly

39. A. nervous       B. excited       C. pleasant      D. eager

40.A. cry B. disappointment  C. surprise      D. noise

41.A. jumped  B. stopped      C. broke  D. settled

42.A. cold      B. small  C. old     D. lonely

43.A. look      B. tears   C. comfort      D. smile

44.A. shook    B. lifted  C. put     D. turned

45.A. gift       B. surprise      C. orange       D. wonder

46.A. sharing  B. breaking     C. eating D. taking

47.A. feelings B. affairs C. relation      D. sacrifice

48.A. In return for B. In case of   C. In memory of    D. In search of

49.A. must     B. would C. might  D. should

50.A. desire    B. idea    C. meaning     D. thinking

题型:单项选择题

阅读下面语段,回答问题:

“摄影文章”并不是以文为主的文章,而是美国新闻摄影报道的一种体裁。它是以照片为主,以几张、几十张,甚至更多的照片,组成一篇通俗易懂的“文章”来阐明一个主题或深入地探讨一个问题。“摄影文章”最初出现在美国《生活》杂志上,它与我国的摄影专题报道有类似之处,但又不尽相同。

最能难确复述这段话主要意思的是(   )。

A.“摄影文章”是美国新闻摄影报道的一种体裁

B.具体介绍了“摄影文章”是一种什么样的摄影报道体裁

C.“摄影文章”是一组由摄影图片组成的“文章”

D.“摄影文章”是一种由照片组成的文章形式的新闻摄影报道而非真正的文章

题型:单项选择题

小儿腹部平片出现“双气泡”征应诊断为()

A.正常变异

B.胃扭转

C.幽门肌肥大

D.十二指肠闭锁

E.小肠旋转不良

题型:单项选择题

《电力设施保护条例》规定不得从事哪些危害电力线路设施的行为?

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