Answer: THE OVERPLAYED SONG HAS LOST ITS APPEAL FOR ME
Explanation: CORRECT ANSWER ON E2020
PCM: Pulse code modulation. It is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, digital telephony and compact discs. The amplitude of this signal is sampled regularly at uniform intervals.
PAM: Pulse amplitude modulation. It is a form of signal modulation where the message information is encoded in the amplitude of a series of signal pulses.
The formula for the molecule of hydrochloric acid is " <em>H Cl</em> " . . .
one atom of hydrogen bound to one atom of chlorine.
Depending on the context, his remark could be humorous...the other answers dont really make sense