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【判断题】
同步发电机稳态运行时的电枢磁场与转子在旋转中总是相对静止的,异步发电机稳态运行时的电枢磁场与转子在旋转中总是存在转差的。
A.
正确
B.
错误
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举一反三
【判断题】IEEE 802.3u是快速以太网交换机的标准
A.
正确
B.
错误
【单选题】By citing The Ecosystem Markets Task Force, the author intends to show______,
A.
the specific ways that resources are commodified
B.
the profitability of the commodification of nature
C.
in what ways the return on investment are assessed
D.
to what extent commodification of nature has gone
【单选题】有关Hive命令行接口叙述,错误的是( )
A.
DML包括LOAD,INSERT, UPDATE等操作。
B.
DDL包括CREATE, DROP等操作。
C.
Hive-QL提供操作用于对Hive数据仓库进行查找。
D.
Hive不提供对数据的修改操作。
【简答题】( )is a letter from a bank To a foreign bank authorizing the payment of a specified Sum to the person or company named.
【判断题】制造商储存并且直接运送及整合转运的分销渠道与零售商储存并由顾客取货的分销渠道相比,新产品上市时间更快。
A.
正确
B.
错误
【单选题】● Which of the following statement related to PMO is not correct? (71) (71)
A.
The specific form, function, and structure of a PMO is dependent upon the needs of the organization that it supports.
B.
One of the key features of a PMO is managing shared resources across all projects administered by the PMO.
C.
The PMO focuses on the specified project objectives.
D.
The PMO optimizes the use of shared organizational resources across all projects.
【单选题】Deadweight is ________ .
A.
the tonnes of the displacement of a vessel in water of a specific gravity of 1.025 at summer load water line
B.
the difference in tonnes between the displacement in salt water at summer load waterline and the light weight of the vessel
C.
the cargoes in tonnes that can be loaded in a vessel at summer load water line
D.
the bale capacity in cubic meters of a vessel
【简答题】额外变量可以混淆自变量对因变量的影响,因此额外变量的控制是实验研究得出正确结论的前提。请将以下控制额外变量的实践操作与控制方法的名称匹配。
【单选题】IEEE 802.3U是快速以太网交换机的标准( )
A.
正确
B.
错误
【单选题】有关Hive命令行接口叙述,错误的是( )
A.
Hive不提供对数据的修改操作。
B.
DDL包括CREATE, DROP等操作。
C.
DML包括LOAD,INSERT, UPDATE等操作。
D.
Hive-QL提供操作用于对Hive数据仓库进行查找。
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