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【单选题】
要产生频率较低的正弦波信号应采用:A.
LC振荡器
B.
RC振荡器
C.
晶体振荡器
D.
以上都不对
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反馈参考答案：
举一反三
【单选题】164 Management styles associated with production environments, such as assembly lines commonly include:
A.
a directing style. of leadership.
B.
a lack of confidence in their workers
C.
assumption that workers lack ambition and dislike responsibility
D.
a Theory X style. of leadership
E.
All of the above
【简答题】简述OSI参考模型中各层的主要功能。
【简答题】简述OSI参考模型中各层的功能。
【单选题】The type of carrier required to file a copy of freight tariffs would be the ______．
A.
Common carrier
B.
Tramp
C.
Public vessel
D.
Bulk carrier
【简答题】简述 OSI 参考模型中服务、接口、协议的作用。
【简答题】简述 ATM 参考模型中物理层的内容及其作用是什么?
【单选题】A Great Quake Coming? Everyone who lives in San Francisco knows that earthquakes are common in the Bay Area-and they can be devastating．In 1906，for example，a major quake destroyed about 28,000 buildin...
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】阅读理解。 Winter's short days are more than cold. For many people, winter depression, the most common type of Seasonal Affective Disorder(SAD), is as much a part of the reason as hats and scarves (围巾). Wi...
【简答题】简述OSI参考模型中应用层的功能和定义?
【单选题】The word 'novel'(Line 1, Para.6)most probably means
A.
believable.
B.
false.
C.
original.
D.
common.
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