题目内容

A.deprivationB.deformationC.deficiencyD.deterioration

A. deprivation
B. deformation
C. deficiency
D. deterioration

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A.specimenB.exampleC.designationD.sample

A. specimen
B. example
C. designation
D. sample

A.clarityB.transparencyC.densityD.purity

A. clarity
B. transparency
C. density
D. purity

A.conceivedB.maintainedC.retainedD.perceived

A. conceived
B. maintained
C. retained
D. perceived

将计算机的数字信号转换为模拟信号的过程是()。

A. 解调
B. 调制
C. 调制并解调
D. 调制或解调

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