22 It is common that, with economic development, the role of customs duty in revenue ______declines.
(A)generation
(B) erosion
(C)leakage
(D)expenditure
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統計: A(141), B(9), C(26), D(17), E(0) #2013448
統計: A(141), B(9), C(26), D(17), E(0) #2013448