阿摩線上測驗
10. The only _____ on my job is that I could not leave whenever I desire.
(A) variable
(B) alternative
(C) integration
(D) hesitation
(E) constraint
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統計： A(2), B(1), C(1), D(3), E(54) #1021231
統計： A(2), B(1), C(1), D(3), E(54) #1021231
