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What to do about this increasing number of inventions and ho......

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A．He hates his job.B．He enjoys his job.C．He wants to find another job.D．He is indifferent to his job.
A．He hates his job.
B．He enjoys his job.
C．He wants to find another job.
D．He is indifferent to his job.
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but it was a hundred years before Thomas Edison moved from theory and experiment to practical application．
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