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【单选题】
如图所示电路N，电流、电压参考方向如图所标。若t=t1时i(t1)=1A，u(t1)=3V，则t=t1时N吸收的功率PN(t1)=( ) A. 3W B. -3W C. 4W D. -4W 【图片】A.
A
B.
B
C.
C
D.
D
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举一反三
【判断题】国家鼓励和支持发挥非物质文化遗产资源的特殊优势，在有效保护的基础上，合理利用非物质文化遗产代表性项目开发具有地方、民族特色和市场潜力的文化产品和文化服务。()
A.
正确
B.
错误
【简答题】_____中国成都国际非物质文化遗产节6月16日在四川成都开幕。据了解，本届成都国际非遗节以“人人都是文化传承人”为主题，将举办各类非遗项目1000余项，会集国内外专家学者300余名、非遗传承人500余名，参加非遗节的国家数量突破100个，为历届非遗节之最、 A: 第2届 B: 第3届 C: 第4届 D: 第5届
【单选题】()认为，文化包括物质文化和非物质文化，物质文化总是先于非物质文化而发展，之后非物质文化会发生适应性变化，二者的变化在时间上是有差距的。
A.
汤恩比
B.
索罗金
C.
熊彼特
D.
奥格本
【简答题】- Will you please tell me how to make phone calls to a foreign ? - First you should decide the purpose of calling, and then find __________________________________ (公司及客户的名字).
【单选题】You are implementing a Windows Communication Foundation (WCF) client application that consumes the ICatalog and lCatalog2 service interfaces.You need to ensure that the client discovers services imple...
A.
Create one FindCriteria object for each interface and set the Duration of each FindCriteria to 30 seconds. Call the FindAsync method of the DiscoveryClient class twice, one time for each of the FindCriteria objects, to search for the services.
B.
Create one FindCriteria object for each interface and set the Duration of each FindCnteria to two seconds. Create a loop that calls the Find method of the DiscoveryClient class to search for the services. Within each loop iteration, call the Find method of the DiscoveryClient class once for each of the FindCriteria objects. Run the loop until a service is found or 30 seconds pass.
C.
Create a single FindCriteria object and add both interfaces to its ContractTypeNames collection. Set the criteria's Duration to two seconds. Create a loop that calls the Find method of the DiscoveryClient class to search for the services. Within each loop iteration, call the Find method of the DiscoveryClient class to search for the services Run the loop until a service is found or 30 seconds pass.
D.
Create a single FindCritera object and add both interfaces to the ContractTypeNames collection. Set the Duration to 30 seconds and use the FindAsync method of the DiscoveryClient class to search for the services.
【单选题】非物质文化遗产是草原文化中的亮丽瑰宝，历届中国?内蒙古草原文化节也带动了非遗保护的传承，以下哪一项不是内蒙古非物质文化遗产项目?( )
A.
长调
B.
园艺
C.
漫瀚调
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