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【单选题】
哈夫曼编码的贪心算法所需的计算时间为_________。A.
O（n2）
B.
O（nlogn）
C.
O（2n）
D.
O（n）
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举一反三
【简答题】分析下图所示逻辑电路的功能。
【简答题】分析下图所示逻辑电路的功能，并改用异或门完成该功能。
【简答题】分析下图所示逻辑电路的功能。
【单选题】Last Sunday, My friend and I drove to the Summer Palace in Beijing. We found there were so many
A.
244. Last Sunday, My friend and I drove to the Summer Palace in Beijing. We found there were so many cars here and there and we couldn’t find a place to _______ the car in. A．pause
B.
stop
C.
place
D.
Park
【单选题】There were so many people that police found it very hard to bring the situation( )control.
A.
At
B.
under
C.
with
D.
on
【简答题】A young mother thought that it was very wrong to waste any food when there were so many hungry people in the world. One evening, she was giving her small daughter her tea before putting her to bed. Fi...
【简答题】试分析下图所示逻辑电路的功能。
【单选题】The girl was drowned unfortunately. She ____, though, because there were so many people standing on the banks at that moment.
A.
should have saved
B.
could have been saved
C.
should be saved
D.
couldn’t have been saved
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