阿摩線上測驗
50 What’s the main idea of this passage?
(A) To explain how a suspension bridge is built.
(B) To introduce the origin of modern suspension bridges.
(C) To summarize previous findings on suspension bridges.
(D) To compare a suspension bridge with other types of bridges.
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統計： A(322), B(186), C(89), D(106), E(0) #1484763
統計： A(322), B(186), C(89), D(106), E(0) #1484763
