["気化毎日一題","安全面から見ると、化学工業での自働弁は通常、空気開き弁と空気閉じ弁を使用します。(。 √","安全面から見ると、化学工業での自働弁は通常、空気開き弁と空気閉じ弁を使用します。(正確)")
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从安全角度考虑，化工生产的自控阀常用气开和气关阀。( ) √
从安全角度考虑，化工生产的自控阀常用气开和气关阀。(正确)
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