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[单选题]

下列关于顺序文件的叙述正确的是()。

A.所有记录的长度不必相同

B.可以随机读取文件中的记录

C.不可使用文本编辑软件编辑

D.文件中记录按关键字顺序存放

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更多“下列关于顺序文件的叙述正确的是()。”相关的问题

第1题

温室气体排放量可作为管理气候变化环境问题的定量指标而非定性指标( )GHGs emissions can be used as a metric other than an indicator for management of climate change( )
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第2题

现代人得知古琴之名(如“诵余”“醉玉”)一般源于何处?

A、文献记述

B、琴式比对

C、琴身篆刻

D、名家命名

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第3题

Read the following passage and answer the question...

Read the following passage and answer the questions. Bobby was getting cold.Try as he might he could not come up with an idea for his mother’s Christmas gift.“This is useless even if I do have an idea I don’t have money to spend.”   Since his father had passed away the family had struggled.But what the family lacked in money and material things they made up for in love.   Wiping a tear from his eye Bobby started to walk from shop to shop looking into each decorated window.Everything seemed so beautiful and so out of reach.   It was starting to get dark when he suddenly discovered a dime(十分钱)lying on the ground.Never before had anyone felt so wealthy as Bobby felt at that moment.   He walked into the first store but his excitement quickly turned cold when he was told nothing could be bought with only a dime.He then went into a flower shop.Hearing Bobby’s words and looking at the dime the shop owner said “You just wait here and I’ll see what I can do for you.”   Bobby waited until the last customer left.The shop owner moved to the counter saying “I happened to have some roses on sale for ten cents a dozen.Would you like them young man?” Could this be true? When the man placed roses into his hands he knew it was true.Walking out gratefully Bobby heard the shop keeper say“Merry Christmas son.”   Staring out of the window tears in eyes the shop keeper explained to his wife “A strange thing happened to me this morning.While I was to open the shop I heard a voice telling me to set aside a dozen of my best roses for a special gift.I wasn’t sure at the time whether I had lost my mind or what but I set them aside anyway.Then when the little boy came in I saw myself many years ago who was a poor boy with nothing to buy mother a Christmas gift.A man I never knew stopped me on the street and gave me ten dollars.Then I knew who that voice was. The shop owner and his wife hugged each other tightly and as they stepped out into the bitter cold air they somehow didn’t feel cold at all. (1) With the dime that Bobby found _________. A. he could afford nothing but a dozen of roses B. he could buy anything he wanted for his mother C. he couldn’t have afforded the roses without the shop owner D. he could use it to buy something in memory of his father

A、A

B、B

C、C

D、D

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第4题

标准渐开线齿轮压力角α=20°的部位在 ( ) 测量。

A、分度圆上

B、齿顶圆上

C、基圆上

D、齿根圆上

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第5题

调整一个素材的长度,且增长或者缩短相邻素材的长度,以保持原来两个素材和整个轨道的总长度。应该使用下列哪个工具

A、旋转编辑工具

B、波纹编辑工具

C、轨道选择工具

D、选择工具

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第6题

选择结构的嵌套可以出现交叉。
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第7题

多级指标体系(hierarchical metrics systems)中各级指标间应( )Which of the following relationship should exist in the metrics at different levels of an hierarchical metrics systems( )

A、彼此联系,下一级指标分摊上一级同名指标的数据 To associate each other, and the lower level metric is used to share the value of the same name metric at the next higher level

B、彼此联系,上一级指标数据恒小于下一级同名指标的数据 To associate each other, and the value of the upper-level metric is always less than that of the same name metrics at the next lower level

C、彼此相对独立,分别针对自身区域/行业设定指标的数值 To be relatively independent of each other, and be set values for a certain region / industrial sector

D、彼此之间关系不确定 To be related each other in uncertain relationships

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第8题

2、文化群体中次级群体的成员所共有的独特信念与价值观通常被称之为( )。

A、大众文化

B、亚文化

C、反文化

D、以上都不对

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第9题

地区管理局搜寻援救协调中心通知开放有关的航空电台、导航台、定向台和雷达等设施,搜寻掌握该民用航空器的空中位置,此种情形属于哪种紧急情况的阶段:()

A、情况不明阶段

B、遇险阶段

C、告警阶段

D、正常飞行故障

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第10题

《杂书琴事》出自宋代哪位文人之手?

A、王勃

B、王维

C、苏轼

D、杜甫

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