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问题

The reception of weak radio signals may be improved by“opening up”the squelch control.What


The reception of weak radio signals may be improved by“opening up”the squelch control.What is the normal setting of the squelch control ().

A.Just past the point where background noise is cut off

B.Completely closed with the volume at the highest level

C.Completely open with the volume at the lowest level

D.None of the above

请帮忙给出正确答案和分析,谢谢!

参考答案
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