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(183), B(128), C(74), D(80), E(0) #1514912

Pinnnnnng

B1 · 2020/04/17

#3888034

suspension
•  懸浮液,暫停,停職
  •  懸架
  •  懸浮
  •  中止
  •  懸掛,懸置,停學
  •  (刑罰)暫緩執行,暫停支付
  •  懸吊
  •  懸置機構