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Karma İngilizce Soruları 3 95. Soru

birinci Bu Testin Birincisi BahattinBorekci
Başarı Yüzdeniz : 100 %
95.
Find the odd sentence

(I)The man credited with developing the first vaccine to fight against the crippling disease polio is the American doctor Jonas Salk. (II) He and his co-workers first tested a polio vaccine against an inactive polio virus in 1952. (III) In 1954, field tests were conducted on a large scale. (IV) Consequently, a number of once deadly diseases have been conquered since the introduction of vaccination. (V) In the end, Salk's vaccine proved the best, and was used without further problems.


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