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【单选题】
双绕组降压变压器高压绕组的额定容量、额定电压、额定电流分别为S1N、U1N、I1N，低压绕组分别为S2N、U2N、I2N，它们之间的关系（ ）。
A.
S1N= S2N 、U1N> U2N 、I1N > I2N
B.
S1N=S2N 、U1N>U2N 、I1N < I2N
C.
S1N>S2N 、U1N>U2N 、I1N > I2N
D.
S1N>S2N 、U1N>U2N 、I1N < I2N
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参考答案：
举一反三
【单选题】公文生效的标志是?
A.
编拟完成公文文号
B.
公文上加盖印章
C.
公文上标注的成文日期
D.
发文机关领导签发
查看完整题目与答案
【判断题】我国合同法只调整民事权利义务关系。
A.
正确
B.
错误
查看完整题目与答案
【多选题】公文生效的标志是 ( )
A.
印章
B.
发文机关署名
C.
发文机关标志
D.
成文时间
查看完整题目与答案
【简答题】Suppose users share a 2 Mbps link. Also suppose each user transmits continuously at 1 Mbps when transmitting, but each user transmits only 20 percent of the time. (See the discussion of statistical mu...
查看完整题目与答案
【单选题】The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the databa...
A.
You obtain the results retrieved from the public synonym HR created by the database administrator.
B.
You obtain the results retrieved from the HR table that belongs to your schema.
C.
You get an error message because you cannot retrieve from a table that has the same name as a public synonym.
D.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.
E.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.
查看完整题目与答案
【简答题】What is the topic Sentence of fifth paragraphof Part B? Today you can avoid being restricted by proprietary software by not using it. If you run GNU/Linux or another free operating system, and if you ...
查看完整题目与答案
【简答题】Suppose users share a 2 Mbps link. Also suppose each user transmits continuosly at 1 Mbps when transmitting, but each user transmits only 20 percent of the time. (See the discussion of statistical mul...
查看完整题目与答案
【简答题】3 Suppose users share a 2Mbps link. Also suppose each user transmits continuously at 1 Mbps when transmitting, but each user transmits only 20 percent of the time. a. When circuit switching is used, h...
查看完整题目与答案
【单选题】The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the databa...
A.
You obtain the results retrieved from the public synonym HR created by the database administrator.
B.
You obtain the results retrieved from the HR table that belongs to your schema.
C.
You get an error message because you cannot retrieve from a table that has the same name as a public synonym.
D.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.
E.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.
查看完整题目与答案
【单选题】Many users of this brand of mobile phones are known for __________________ their devices, to the point that they even give them various nicknames.
A.
wearing out
B.
being addicted to
C.
being accountable to
查看完整题目与答案
相关题目：
【单选题】公文生效的标志是?
A.
编拟完成公文文号
B.
公文上加盖印章
C.
公文上标注的成文日期
D.
发文机关领导签发
查看完整题目与答案
【判断题】我国合同法只调整民事权利义务关系。
A.
正确
B.
错误
查看完整题目与答案
【多选题】公文生效的标志是 ( )
A.
印章
B.
发文机关署名
C.
发文机关标志
D.
成文时间
查看完整题目与答案
【简答题】Suppose users share a 2 Mbps link. Also suppose each user transmits continuously at 1 Mbps when transmitting, but each user transmits only 20 percent of the time. (See the discussion of statistical mu...
查看完整题目与答案
【单选题】The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the databa...
A.
You obtain the results retrieved from the public synonym HR created by the database administrator.
B.
You obtain the results retrieved from the HR table that belongs to your schema.
C.
You get an error message because you cannot retrieve from a table that has the same name as a public synonym.
D.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.
E.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.
查看完整题目与答案
【简答题】What is the topic Sentence of fifth paragraphof Part B? Today you can avoid being restricted by proprietary software by not using it. If you run GNU/Linux or another free operating system, and if you ...
查看完整题目与答案
【简答题】Suppose users share a 2 Mbps link. Also suppose each user transmits continuosly at 1 Mbps when transmitting, but each user transmits only 20 percent of the time. (See the discussion of statistical mul...
查看完整题目与答案
【简答题】3 Suppose users share a 2Mbps link. Also suppose each user transmits continuously at 1 Mbps when transmitting, but each user transmits only 20 percent of the time. a. When circuit switching is used, h...
查看完整题目与答案
【单选题】The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the databa...
A.
You obtain the results retrieved from the public synonym HR created by the database administrator.
B.
You obtain the results retrieved from the HR table that belongs to your schema.
C.
You get an error message because you cannot retrieve from a table that has the same name as a public synonym.
D.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.
E.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.
查看完整题目与答案
【单选题】Many users of this brand of mobile phones are known for __________________ their devices, to the point that they even give them various nicknames.
A.
wearing out
B.
being addicted to
C.
being accountable to
查看完整题目与答案
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