A.失諧功能 B.感應(yīng)調(diào)壓 C.抑制諧波 D.選頻測(cè)試
A.7V≤U≤1lV B.8V≤U≤12V C.9V≤U≤12V D.10V≤U≤12V
A.0.75 B.0.85 C.0.95 D.0.96