What was another contribution by Edison to the movies?

What was another contribution by Edison to the movies?A.He introduced the 35 mm

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When did people try to develop ways of showing motion with

When did people try to develop ways of showing motion with photographs?A.Before

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One reason whales beach may be

One reason whales beach may beA.because they are hungry B.because they are att

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第31题应选( )

第31题应选( )A.day B.date C.time D.Hour

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