阿摩線上測驗
27. According to the passage, the words "invisible people" in the first paragraph refer to _____
(A) people who are not accustomed to appearing in public
(B) the working class that usually does not receive much social attention
(C) the multitude of ordinary people
(D) low-profile persons
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統計： A(1), B(2), C(3), D(1), E(0) #3442725
統計： A(1), B(2), C(3), D(1), E(0) #3442725
