阿摩線上測驗
50. In the last sentence of paragraph 5, the word their refers to ____.
(A) the robots’
(B) the humans’
(C) the researchers’
(D) the science fiction admirers’
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統計： A(27), B(12), C(69), D(15), E(0) #2856600
統計： A(27), B(12), C(69), D(15), E(0) #2856600
