12. Until the 17th century, ropes and baskets were the primary methods of transporting people and goods ________the heights.
(A) as long as
(B) to and from
(C) at the same time
(D) due to

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統計： A(7), B(126), C(4), D(67), E(0) #607583

詳解 (共 1 筆)

#1020506
to and from 來來回回，往返
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