27.
(A) A science professor teaching about energy
(B) A journalist reporting on environmental change
(C) A scientist researching renewable energy
(D) An adventurer exploring different environments
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統計: A(4), B(2), C(21), D(3), E(0) #3411101
統計: A(4), B(2), C(21), D(3), E(0) #3411101