Whenamachineanalysesthefrequenciesusedbyaparticularvoiceanddrawsa_____ofthem,soundisconvertedintoapatternoflines.
A.figure B.graph C.picture D.diagram正确答案B
Whenamachineanalysesthefrequenciesusedbyaparticularvoiceanddrawsa_____ofthem,soundisconvertedintoapatternoflines.
A.figure B.graph C.picture D.diagram正确答案B