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【单选题】
____ 描述了有限带宽、有随机热噪声信道的最大传输速率与信道带宽、信号噪声功率比之间的关系。A.
平稳随机过程
B.
香农定理
C.
噪声
D.
概率分布
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举一反三
【单选题】According to the passage, which of the following determines the shape and coloring of the plumage of a given species of bird within a given ecological niche?
A.
The emergence of a competing species who rely upon the same food source as the first species
B.
The physical appearance of the food supply available in the niche to the given species
C.
The ability of the first species to collect and make use of the nutritional properties of the food within in the niche
D.
The physical appearance of rival males within the species who compete for both the same food supply and females
E.
The physiological effects on fertility of the food available in the niche
【单选题】What has the inflation brought about to the US and Britain according to the passage?
A.
High jobless rate.
B.
Economic depression.
C.
A hard conduct of monetary policy.
D.
The increase of capacity utilization.
【判断题】The methods of marketing will naturally vary according to their size and also according to the type of goods and the nature of the market.
A.
正确
B.
错误
【单选题】According to the passage,who should face and respond to the changes?
A.
The customers.
B.
The company.
C.
The employees.
D.
The boss of the company.
【简答题】Automotive engines are classified as the reciprocating engine and rotary engine according to the way they work; as the gasoline engine and diesel engine according to fuel they burn;and as the inline e...
【简答题】俄罗斯的国徽是金色翘翅 标志。
【单选题】The examples of the pregnant woman and Liz are used to show that some people ______.
A.
may take the trouble to help others
B.
won't take the trouble to help others
C.
may help others save time
D.
Won't help others save time
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