阿摩線上測驗
21. Stress is a state which is ______ complicated to be kept under full control.
(A) such
(B) enough
(C) as
(D) far too
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統計： A(101), B(59), C(45), D(136), E(0) #2106447
統計： A(101), B(59), C(45), D(136), E(0) #2106447
