阿摩線上測驗
2 The company decided to _____ its product line to attract more customers.
(A) expend
(B) conceal
(C) expense
(D) expand
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統計： A(59), B(2), C(3), D(147), E(0) #3744876
統計： A(59), B(2), C(3), D(147), E(0) #3744876
