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OpenStudy (anonymous):
Which of the following inventions was predicted by science-fiction writers? A.) automatic doors B.) frequent travel C.) cover letters D.) nail polish
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OpenStudy (anonymous):
I think A but i'm not sure... @amistre64
OpenStudy (amistre64):
lol, um ... automatic doors would seem to me to be the only one that can be defined as an invention. but I cant say fer sure
OpenStudy (frosters):
A) automatic doors were predicted by science-fiction writers.
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