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Q.3 . be careful to use appropriate (word/wording) when writing up the contract.
Q.5. studies have shown that a positive environment can significantly improve worker (effectiveness/effecting).
저 두개 문제 답이 왜그렇게 되는지 잘 모르겟습니다..
좀 자세한 설명좀 부탁드릴게요 ㅠㅠ(초보라서...)
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