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When DDT became available for civilian use in 1945, there were only a few people who expressed the second thought about this __6__new miracle compound.

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South Pacific islands of malaria-caused insects for U.S. troops, while __4__in Europe being used as an effective de-lousing power.

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Its inventor was awarded by the Nobel Prize. __5__

HelioX10和MT6795是什么关系?

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