49 Which of the following statements describes an advantage of a suspension bridge over some other types of
bridges?
(A) It is easier to complete.
(B) It is stretchable in length.
(C) It is less likely to fall down.
(D) It is less expensive to build.
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A suspension bridge ...
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49下列哪些語句描述了懸掛橋在某些其他類...
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