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A transmission system at a radio station uses a/an _______ to convert a direct current into a high frequency alternating current. A. oscillator B. modulator C. transmitting antenna D. demodulator
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Asked 1/16/2013 12:13:57 PM
Updated 10/29/2014 3:37:02 AM
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This answer has been confirmed as correct and helpful.
Edited by andrewpallarca [10/29/2014 3:37:01 AM], Confirmed by andrewpallarca [10/29/2014 3:37:02 AM]
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23 squared is 529 .

Added 12/6/2014 6:13:49 AM
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