阿摩線上測驗
21. Routine exercise may help ______ stress levels.
(A) to lowering
(B) lowered
(C) having lowered
(D) lower
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統計： A(52), B(19), C(46), D(158), E(0) #3675866
統計： A(52), B(19), C(46), D(158), E(0) #3675866
