阿摩線上測驗
50. According to the passage, what was the purpose of examining a sample number of immigrants?
(A)To measure the use of grammar.
(B)To detect differences in nationalities.
(C)To confirm different language characteristics.
(D)To compare different age groups.
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統計： A(8), B(12), C(24), D(88), E(0) #1320994
統計： A(8), B(12), C(24), D(88), E(0) #1320994
