阿摩線上測驗
20. The argument is predicated ______ a distinction that, upon closer examination, proves far less clear-cut than initially assumed.
(A)on
(B)in
(C)at
(D)for
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統計： A(22), B(4), C(5), D(16), E(0) #3866634
統計： A(22), B(4), C(5), D(16), E(0) #3866634
