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【简答题】
设二进制码元速率为 R B2 , N 进制码元速率为 R BN ,且有 N =2 k ( k 为自然数),则 R B2 和 R BN 的关系为 。
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举一反三
【单选题】The books in the library are ____ by subject.
A.
classify
B.
classified
C.
to classify
D.
classification
【单选题】As we know, the books in the library are by subject.
A.
clarified
B.
purified
C.
classified
D.
simplified
【简答题】电子式SRS主要由 、 、 、 等组成。传感器按其结构可分为机电式和电子式,机电式主要有 、 、 、 等。
【单选题】The books in the library aren’t allowed ____ .
A.
taking out
B.
to take out
C.
to be taken out
D.
being taken out
【单选题】Which of the following is right in describing a fallacy?
A.
A fallacy is the interesting reasoning in an argument.
B.
A fallacy is a story in an argument.
C.
A fallacy is something people laugh at.
D.
A fallacy is a logical mistake.
【单选题】Students in the college have access___ the books in the library.
A.
with
B.
on
C.
to
D.
from
【单选题】下面程序运行过程中,会产生( ) tuplea=(1,2,0,4,8,11) print(tupleA[3])
A.
语法错误
B.
异常
C.
逻辑错误
D.
运行错误
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