阿摩線上測驗
48 Among the four birth orders introduced in the passage, which two are more similar to each other?
(A) Firstborns and middle-borns.
(B) Middle-borns and last-borns.
(C) Last-borns and only children.
(D) Only children and firstborns.
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統計： A(8), B(19), C(31), D(60), E(0) #1258716
統計： A(8), B(19), C(31), D(60), E(0) #1258716
