阿摩線上測驗
15. Management and labor are learning to work _____, as has been evidenced by the sharp drop
in strikes.
(A) per se
(B) once in a blue moon
(C) between Scylla and Charybdis
(D) in tandem
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統計： A(8), B(13), C(50), D(68), E(0) #2740504
統計： A(8), B(13), C(50), D(68), E(0) #2740504
