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【单选题】
下列情况属于随机误差的是 （ ）
A.
千分尺零点不准
B.
电源电压不稳定引起的测量值起伏
C.
游标的分度不均匀
D.
磁电系电表永久磁铁的磁场减弱
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参考答案：
举一反三
【简答题】在将计算机与 10Base-T 集线器进行连接时, UTP 电缆的长度不能大于 ____ 米。在 将计算机与 100Base-T 集线器进行连接时, UTP 电缆的长度不能大于 ____ 米 。
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【简答题】Listen to the conversation again and (1) note down the questions Nelson asks, and (2) mark with an asterisk the questions that Mike doesn't answer or is not sure about.
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【单选题】It is the mark of an educated mind to rest______with the degree of precision which the nature of the subject______and not to seek exactness where only an approximation is possible.
A.
satisfiedly … admits
B.
convivially … assumes
C.
fitfully … allows
D.
contentedly … rejects
E.
sporadically… entails
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【判断题】Mark was an American citizen and he wanted to get married with Gail.
A.
正确
B.
错误
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【判断题】An Exclamatory sentence expresses strong feeling or excitement. Usually it ends with an exclamation mark.
A.
正确
B.
错误
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【单选题】下面选项中哪一个不属于传统中餐餐具
A.
碗
B.
筷子
C.
汤勺
D.
刀叉
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【单选题】一个半径为r的半球面如图放在均匀磁场中，通过半球面的磁通量为（）
A.
2πr 2 B
B.
πr 2 B
C.
2πr 2 Bcosα
D.
πr 2 Bcosα
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【简答题】Directions:Decide whether the following statements are true or false, if it is true,please mark with a “T”, or if it is false, please mark with an “F”. The letterhead helps to form the impression of t...
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【判断题】电子商务就是网上零售。
A.
正确
B.
错误
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【简答题】President______ is leaving his mark with an ambitious $1 billion construction program in Massachusetts Institute.
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相关题目：
【简答题】在将计算机与 10Base-T 集线器进行连接时, UTP 电缆的长度不能大于 ____ 米。在 将计算机与 100Base-T 集线器进行连接时, UTP 电缆的长度不能大于 ____ 米 。
查看完整题目与答案
【简答题】Listen to the conversation again and (1) note down the questions Nelson asks, and (2) mark with an asterisk the questions that Mike doesn't answer or is not sure about.
查看完整题目与答案
【单选题】It is the mark of an educated mind to rest______with the degree of precision which the nature of the subject______and not to seek exactness where only an approximation is possible.
A.
satisfiedly … admits
B.
convivially … assumes
C.
fitfully … allows
D.
contentedly … rejects
E.
sporadically… entails
查看完整题目与答案
【判断题】Mark was an American citizen and he wanted to get married with Gail.
A.
正确
B.
错误
查看完整题目与答案
【判断题】An Exclamatory sentence expresses strong feeling or excitement. Usually it ends with an exclamation mark.
A.
正确
B.
错误
查看完整题目与答案
【单选题】下面选项中哪一个不属于传统中餐餐具
A.
碗
B.
筷子
C.
汤勺
D.
刀叉
查看完整题目与答案
【单选题】一个半径为r的半球面如图放在均匀磁场中，通过半球面的磁通量为（）
A.
2πr 2 B
B.
πr 2 B
C.
2πr 2 Bcosα
D.
πr 2 Bcosα
查看完整题目与答案
【简答题】Directions:Decide whether the following statements are true or false, if it is true,please mark with a “T”, or if it is false, please mark with an “F”. The letterhead helps to form the impression of t...
查看完整题目与答案
【判断题】电子商务就是网上零售。
A.
正确
B.
错误
查看完整题目与答案
【简答题】President______ is leaving his mark with an ambitious $1 billion construction program in Massachusetts Institute.
查看完整题目与答案
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