阿摩線上測驗
27. What is the main focus of this announcement?
(A) The release of a new book
(B) The release of a new research report
(C) An event featuring a new book
(D) An event introducing a new expert
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統計： A(33), B(7), C(68), D(9), E(0) #3315156
統計： A(33), B(7), C(68), D(9), E(0) #3315156
