20. The new findings may have potential implications for male reproductive health or couple _____.
(A) felicity
(B) fecundity
(C) fidelity
(D) propensity
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統計: A(9), B(14), C(5), D(1), E(0) #1802818
統計: A(9), B(14), C(5), D(1), E(0) #1802818