2. 财务会计
  3. By __________ a cheaper material for the

By __________ a cheaper material for the

Freeti2019-12-17  13
问题 By __________ a cheaper material for the steel in our products, we can greatly reduce manufacturing costs.
选项 A.substitutingB.replacingC.alternatingD.displacing
答案A
解析句子表示“用更便宜的材料代替钢铁”，意为“用A代替8”的词组"substitute A for B”放在空格处的句意最自然，故选A。
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