物质通常有______、______和______三种状态,物质处于哪一种状态跟

题型:填空题

问题:

物质通常有______、______和______三种状态,物质处于哪一种状态跟______有关,当______改变时,物质可以从一种状态变成另一种状态,这种变化叫物态变化.

考点:物质的三态及其基本特征
题型:填空题

第二节:完形填空(共15小题;每小题2分,满分30分)

  阅读下面短文,掌握其大意,然后从41~55各题所给的四个选项(A、B、C和D)中,

选出最佳选项。

As a saying goes, every bean has its black. It is impossible to make no mistakes all one’s life. My grandpa Nybakken, a carpenter(木匠), is no   41  . Several decades ago he made a mistake – a perfect mistake,   42  .

On a cold Saturday, Mother’s father was building some wooden cases for the clothes his church was sending to an orphanage (孤儿院) in China. On his way home, he reached into his shirt pocket to find his glasses, but they were gone. He remembered putting them there that morning, so he drove back to the church. His search proved fruitless.

When he   43   replayed his earlier actions, he realized what happened. The glasses had slipped out of his pocket unnoticed and fallen into one of the cases, which he had nailed shut. His brand new glasses, having   44   him £20 that very morning, were heading for China! He had to drive home   45  .

Several months later, the director of the orphanage came to give a report on Sunday night at my grandfather’s church, which Grandpa and his family also attended.

“But most of all,” he said, “I must thank you for the   46   you sent last year. You see, the bandits(土匪) had just   47   through the orphanage, destroying everything, including my glasses. I was desperate.”

“   48   I had the money, there was simply no way of   49   those glasses.   50   headaches every day. Then your cases arrived. When my staff   51   the covers, they found a pair of glasses lying on top.”

Then, still gripped (吸引注意) with the  52   of it all, he continued: “When I tried on the glasses, it was as though they had been made just for me! I want to thank you for being a part of that!”

The people listened,   53   for the miraculous(奇迹的) glasses. But the director surely must have  54   their church with another, they thought. There were no glasses on their   55  of items to be sent overseas.

But sitting quietly in the back, with tears streaming down his face, an ordinary carpenter realized the Master Carpenter had used him in an extraordinary way.

41.A.expectation    B.success   C.comment       D.exception

42.A.though     B.although C.as   D.so

43.A.mentally       B.physically      C.anxiously      D.directly

44.A.charged  B.spent      C.paid       D.cost

45.A.disappointed  B.pleased   C.nonstop  D.quick

46.A.cases      B.clothes   C.glasses   D.wishes

47.A.cut        B.swept     C.pulled    D.broken

48.A.Unless   B.As long as     C.Until      D.Even though

49.A.replacing       B.finding   C.wearing  D.changing

50.A.Except for     B.Along with    C.Rather than    D.As for

51.A.nailed    B.burnt     C.removed        D.took

52.A.preparation    B.pleasure        C.satisfaction   D.wonder

53.A.pity       B.happy    C.curious   D.eager

54.A.confused       B.associated      C.combined      D.compared

55.A.cases      B.order     C.list  D.orphanage

题型:填空题

CD40

题型:填空题

请在下表中填写对付网络安全威胁的相应安全服务。

 

题型:填空题

信息技术中的()指有关信息获取与处理的各种知识、方法与技能。

A.物化技术

B.硬技术

C.软技术

D.非物化技术

题型:填空题

简述随机接入冲突处理的机制

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