試卷：無年度 - 2003年8月托福閱讀#20899
| 科目：TOEFL(Test of English as a Foreign Language)托福
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試卷名稱：無年度 - 2003年8月托福閱讀#20899
科目：TOEFL(Test of English as a Foreign Language)托福
31 According to the passage,1/25 second is the minimum amount of time required for the
(A) recording of an image on film
(B) generation of artificial light
(C) creation of a photographic emulsion
(D) human eye to react to light
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