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【单选题】
When the Federal Communications Commission proposed giving low-power radio stations licenses on the FM dial, they knew they'd get flak from big broadcasting. The National Association of Broadcasters (NAB), after all, spends millions of dollars every year lobbying to keep everybody else off the radio spectrum—even locally managed, noncommercial stations that broadcast only within a four-mile radius. Sure enough, when the FCC proposed its new regulations, the NAB began screaming about all the terrible things those tiny radio transmitters could do to the big ones, whose signals are 500 times as strong and whose reach is nearly 20 times as far. It was a pretty thin argument. So thin, in fact, that for a while if appeared the proposed regulations might survive the lobbying onslaught. And then the FCC and its allies ran into a most unlikely opponent, one with the moral authority to do real damage to their cause: National Public Radio. One might easily assume that NPR would look out for the public interest. After all, NPR was born from the Public Broadcasting Act of 1967, which called for it to 'encourage the development of programming that involves creative risks and that addresses the needs of unserved and underserved audiences' while creating 'programs of high quality, diversity, creativity, excellence, and innovation which are obtained from diverse sources.' The charter, in other words, describes exactly the kind of programming low-power radio might provide, particularly in rural or heavily immigrant communities where locally oriented programming could be more useful than nationally syndicated shows. But the well-meaning lefties at NPR didn't see low-power radio as a potential ally or kindred spirit. They saw it just as the big broadcasters did—as a threat—and tried to squash it in much the same way. They may have succeeded. NPR's lobbying supported a last-minute rider in December's Senate appropriations bill (which eventually became law). This amendment severely handicaps the low-power radio initiative. Specifically, it limits the licensing of low-power radio to just nine test markets, enforcing restrictions that effectively keep it out of urban are as and other major markets. It also mandates testing to determine the economic impact on established broadcasters. And, though John McCain has vowed to continue the fight for low power, for now at least NPR has won the day. The primary motivation behind opening the airwaves to low-power radio was to undo the damage wrought by the Telecommunications Act of 1996. That law was supposed to increase competition on the airwaves. Instead, it consolidated control of radio stations in the hands of a few large, national companies that syndicate programs (or even whole broadcasts) to their affiliates, thus squeezing out local programming. By allowing small, noncommercial stations, to break into the spectrum, the FCC hoped to reintroduce local material in places where it has all but vanished. In its application process, the FCC privileged local content and community involvement—for example, assigning spectrum space to stations in primarily Latino areas that broadcast family-planning information in Spanish. Part of the application asked aspiring broadcasters how their stations would serve their neighborhoods. From the text we can infer that the NAB represents______.
A.
backers of commercial radio
B.
National Public Radio
C.
large radio stations in the U.S.
D.
companies which produce large radio transmitters
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【单选题】PCU的主要功能是:()
A.
处理sgsn的数据
B.
处理ggsn的数据
C.
处理bsc的数据
D.
处理自身的数据
【判断题】白喉患者应用青霉素和白喉抗毒素治疗
A.
正确
B.
错误
【单选题】比亚迪E6驱动电机控制器类型为电压型逆变器,利用( )将直流电转换为交流电,额定电压为318V,主要功能是控制电动机和发电机等根据不同工况控制电机的正反转、功率、扭矩、转速等。
A.
PNP
B.
PCU
C.
IGBT
D.
MCU
【判断题】白喉患者应用青霉素和白喉抗毒素治理。
A.
正确
B.
错误
【简答题】()是PCU和BSC之间的接口,主要完成MS在CCCH上发起的分组数据传送流程,并实现PCU和BSC之间资源协商。()是PCU与SGSN之间的接口,通过该接口SGSN完成同PCU之间的通信,以实现分组数据传送、流量控制、移动性管理等方面的功能。
【单选题】环境监测器()实际上是单片计算机系统,其主要功能是接收探测器送来的报警信号,经过处理之后,产生告警信息。
A.
CMU
B.
PCU
C.
EMU
D.
MISU
【单选题】《自由引导人民》的作者是__
A.
籍里柯
B.
德拉克洛瓦
C.
透纳
D.
戈雅
【单选题】PDCH信道分配不成功最主要的原因可能在:()
A.
SGSN
B.
PCU
C.
GGCN
D.
BTS
【单选题】下列不是人陷入恶德的原因的是()。
A.
恶德结果的利和善是眼前的确定的
B.
恶德本身是一种善。
C.
恶德的总的净余额是巨大的善和利益
D.
恶德本身是愿望和自由的解放与实现
【简答题】PCU的主要功能是
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