問題詳情
20. The job of a demographer is to investigate______ in specific locations.
(A) are there many people
(B) how many people are there
(C) how many people there are
(D) there are how many people
(E) how people are there
參考答案
答案：C
難度：適中0.5
統計：A(0),B(4),C(9),D(4),E(1)
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