六级Reducing waste by incorporating med materials into production can cut costs and decrease the price of procurement: less to be procured from the outside and more to be re-utilized from the inside.
通过将med材料纳入生产中来减少浪费,可以降低成本并降低采购价格:从外部采购的更少,从内部重新利用的更多。
2019年6月六级真题(第二套)阅读 Section B
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