阿摩線上測驗
46 According to the passage, when was the idea of the postage stamp first suggested?
(A) In the first half of the eighteenth century.
(B) In the second half of the eighteenth century.
(C) In the first half of the nineteenth century.
(D) In the second half of the nineteenth century.
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統計： A(22), B(10), C(50), D(2), E(0) #1226008
統計： A(22), B(10), C(50), D(2), E(0) #1226008
