For reproducing sound, a CD (Compact Disc) audio player uses a
(a) Quarts crystal
(b) Titanium needle
(c) Laser beam
(d) Barium titanate ceramic
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Which of the following is the deadline given to the members of ?Euro Monetary Union (EMU)? to withdraw their national currencies from circulation? 1 January 1, 2002 2 July 1, 2002 3 September 1, 2002 4 None of these
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