45. Which of the following can best replace the word “reciprocal” (in the final paragraph)?
(A) mutual
(B) honest
(C) simple
(D) polite
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統計: A(148), B(46), C(44), D(63), E(0) #3229029
統計: A(148), B(46), C(44), D(63), E(0) #3229029