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History, 14.07.2019 11:30 ibrsayed6671

What contributed did jonas salk make to science in the 1950s a. he invented ddt, the miracle pesticide b. he designed the first us satellite. c. he developed smaller computers. d. he created a vaccine against polio so much

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What contributed did jonas salk make to science in the 1950s a. he invented ddt, the miracle pestic...
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