47. What is going to be explained and illustrated in the following paragraph?
(A) large-scale school comparisons
(B) the quantitative approach
(C) sociodemographic
(D) the ethnographic approach
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統計: A(3), B(4), C(4), D(10), E(0) #1590186
統計: A(3), B(4), C(4), D(10), E(0) #1590186