問題詳情

28. Thirteen hundred medical professionals, all of which have been trained to treat drug dependency, attended the annual convention sponsored by the Society to Prevent Drug Abuse. 
(A)
(B)
(C)
(D) 

參考答案

答案:A
難度:非常簡單1
統計:A(2),B(0),C(0),D(0),E(0)

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