試卷：無年度 - 2003年1月托福閱讀#20900
| 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1月托福閱讀#20900
科目：TOEFL(Test of English as a Foreign Language)托福
22. According to the passage, the main disadvantage of person-on-the-street interviews is that
they
(A) are not based on a representative sampling
(B) are used only on television
(C) are not carefully worded
(D) reflect political opinions
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