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試卷:無年度 - 98年5月托福閱讀試題#20930 | 科目:TOEFL(Test of English as a Foreign Language)托福

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試卷名稱:無年度 - 98年5月托福閱讀試題#20930

科目:TOEFL(Test of English as a Foreign Language)托福

19. Most of the helium in the universe was formed
(A) in interstellar space
(B) in a very short time
(C) during the first minute of the universe's existence
(D) before most of the hydrogen
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