The closure of the factory was the single most important _______ in the town’s decline(衰退、下降、下跌).
(A) factor (n) 因素、要素(B) rank (n) 地位、身分、社會階層 / (v) 排列、把...分等(C) bond (n) 公債、債券、束縛、聯繫、黏著劑(D) frame (n) 骨架、結構、體制
32. The closure of the factory was the s..-阿摩線上測驗