A.赫茲(Hz)B.弧度(rad)C.弧度/秒D.度/秒
A.自變量連續(xù),函數(shù)值量化B.自變量連續(xù),函數(shù)值連續(xù)C.自變量離散,函數(shù)值量化D.自變量離散,函數(shù)值連續(xù)
A.乘法B.加法C.延遲D.差分