After the gold ore gave out, Chiufen's mining industry \_\_\_\_. But the residents discovered a new gold mine in the form of souvenir shops, teahouses, art galleries and fine restaurants.
Acollapsed正確答案
Bcollided
Ccollocated
Dcolonized
答案與詳解
為什麼答案是 A
collapsed 意為崩潰、瓦解、沒落。金礦枯竭後，採礦業隨之沒落，符合上下文語意。
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