阿摩線上測驗
20. _____ in transportation, medieval Europe would not have adopted monetary units of exchange and eliminated the process of bartering.
(A) If there are no improvements
(B) Had there been no improvements
(C) Were there no improvements
(D) If there hadn’t had improvements
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統計： A(3), B(21), C(2), D(2), E(0) #3848042
統計： A(3), B(21), C(2), D(2), E(0) #3848042
詳解 (共 1 筆)
跳起來再三公分的難度
#7327212
If there had been...
=Had there been...
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