What is a generally acknowledged as the most powerful advertising medium and reaches abroad spectrum of consumers. （）
A、radioadsB
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Whileonlyabout300workersreceivedisablementbenefitforindustrialdermatitiseveryyear,theremaybebetween15,000and60,000newcasesofthisconditioneveryyear.
AccordingtoUKofficialstatistics,everyyearabout2000livesarelostthroughoccupationaldiseaseorinjury,about20,000majorindustrialinjuriesoccur(e.g.skullfracture,lossofsight)andthereareabout200,000injuriesresultinginaworkdisabilityof3daysormore.
Rubberprotector
Besusceptibleto
Whatmakesameetingeffective?
