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1 vote
Which was not a labor-saving device that first appeared around the beginning of the twentieth century?

A.
washing machine

B.
spinning wheel

C.
sewing machine

D.
vacuum cleaner

2 Answers

1 vote
Spinning wheel, of course! That was invented long before the 1900's!
Hope that I could help!
User Max Jacob
by
7.7k points
4 votes
easy.....A Spinning Wheel 
User Olejs
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8.5k points