一只“220V，100W”灯泡工作时电阻为484Ω，测它不工作时电阻（）。 A: 等于484Ω B: 略大于484Ω C: 小于484Ω D: 远大于484Ω

一只“220V、100W”的灯泡工作电阻为484Ω，拿同样一只灯泡测量它不工作时的电阻应（） A: 大于484Ω B: 小于484Ω C: 等于484Ω D: 无法确定

已知R=100Ω上电压u=311sin(314t+300）v,则电阻上有功功率P和无功功率Q分别为 A: 484W/0va B: 0W/484 va C: 484 var/0w D: 1000w/484 va

BBC One and BBC Three are the flagship channels of BBC.

同一个MSC下，整个切换过程由（）共同完成 A: MS、BTS、BBC、MSC B: BTS、BBC、MSC C: BTS、BBC D: MS、BTS、BBC

BBC

Which of the following about the BBC is NOT true? A: The BBC is run under a Royal Charter since its establishment. B: Today the BBC provides more radio broadcasting than television output. C: The BBC provides not only national broadcasting service but also world service. D: The BBC is a private corporation.

‏Which of the following about the BBC is NOT true?‍ A: The BBC is run under a Royal Charter since its establishment. B: Today the BBC provides more radio broadcasting than television output. C: The BBC provides not only national broadcasting service but also world service. D: The BBC is a private corporation.

Which of the following about the BBC is NOT true? A: There is no advertising on any of the BBCprogrammes. B: The BBC is funded by license fees paidby people who possess television sets C: The BBC has four channels. D: The BBC provides the World Servicethroughout the world.

‍Which of the following four statements about British Broadcasting Corporation is false?‎ A: It is sometimes referred to as “Auntie” or “the Beeb”. B: The stated mission of the BBC is "to inform, educate and entertain". C: The motto of the BBC is "Nation Shall Speak Peace Unto Nation". D: BBC One and BBC Three are the two flagship channels of BBC television channels.