使用流速计测量水的流量时,将应探头放入管道或渠道的()处。测量的时间越长,所测量流速越准确,测量的时间应大于()s(H为水的深,m)
A. 0.5,100
B. 0.6,50
C. 0.6,100
D. 0.3,100
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WhatinterfaceiscreatedwhenanFCPortChanneliscreatedonaCiscoUnifiedComputingSystem?()
Aninterface’san-port-channel’inNXOS
B. Aninterface’port-channel’inNXOS
C. Aninterface’port-channel’with’modefc’configured
D. Aninterface’fc-port-channel’inNXOS
WhatistherequirementofRemoteTriggeredBlackHole(RTBH)filtering?()
A. IBGPupdatesexchangebetweentriggerrouterandblackholerouter
B. EBGPupdatesexchangebetweentriggerrouterandblackholerouter
C. OSPFupdatesexchangebetweentriggerrouterandblackholerouter
D. ISISupdatesexchangebetweentriggerrouterandblackholerouter
下列产于重量分析对沉淀式的要求中说法不正确的是()
A. 沉淀的溶解度必须很小(一般要求小于10-4mol/L)以保证被测组分沉淀完全
B. 沉淀式要便于过滤和洗涤
C. 沉淀力求纯净,尽量避免其他杂质的沾污,以保证获得准确的分析结果。
D. 沉淀式与称量式应保持一致。
InAnyTransportoverMPLS(AtoM)Controlwordisanoptional4-bytefieldusedinthepseudowirepacket.ThecontrolwordcarriesgenericandLayer2payload-specificinformationtoemulateL2packetscorrectly.Inpseudowirepacket,whereisthisControlWordinserted?()
A. InsertedbetweentheMPLSlabelstackandtheLayer3payload
B. InsertedbetweentheMPLSlabelstackandtheLayer3Header
C. InsertedbetweentheMPLSlabelstackandtheLayer2payload
D. InsertedbetweentheMPLSlabelstackandtheLayer2header