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在艺术品基本鉴定过程中，一看（）、二分（）、三看（），从而确定取舍。
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患者男，58岁，因“间歇性咳嗽、痰中带血1个月”来诊。吸烟1~2包/d×30年。查体：T36.5℃，P86次/min，R24次/min，BP120/82mmHg；锁骨上淋巴结无肿大；双肺呼吸音清，HR86次/min，律齐，各瓣膜区未闻及病理性杂音；双下肢轻度水肿。为明确诊断，下一步应做的检查有（提示血常规：Hb120g/L，WBC5.2×109/L，N0.71。痰细胞学：可疑癌细胞。胸部X线片：未见明显异常。）（）
企业经营活动要考虑的因素有（）
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McDonald's, Greggs, KFC and Subway are today named as the most littered brands in England as Keep Britain Tidy called on fast-food companies to do more to tackle customers who drop their wrappers and drinkscartons(盒子) in the streets. Phil Barton, chief executive of Keep Britain Tidy,(62)its new Dirty Pig campaign, said it was the first time it had investigated which(63)made up "littered England" and the same names appeared again and again. "We(64)litterers for dropping this fast food litter(65)the first place but also believe the results havepertinent(相关的) messages for the fast food(66). McDonald's, Greggs, KFC and Subway need to do more to(67)littering by their customers." He recognised efforts made by McDonald's,(68)placing litter bins and increasing litter patrols, but its litter remained "all too prevalent". All fast food chains should reduce(69)packaging, he added. Companies could also reduce prices(70)those who stayed to eat food on their premises, offer money-offvouchers(代金券) or other(71)for those who returned packaging and put more bins at(72)points in local streets, not just outside their premises. A(73)for McDonald's said: "We do our best. Obviously we ask all our customers to dispose of litter responsibly." Trials of more extensive, all-day litter patrols were(74)in Manchester and Birmingham. KFC said it took its(75)for litter management "very seriously", and would introduce a programme to reduce packaging(76)many products. Subway said that it worked hard to(77)the impact of litter on communities,(78)it was "still down to the(79)customer to dispose of their litter responsibly". Greggs said it recognised the " continuing challenge for us all ",(80)having already taken measures to help(81)the issue.
改扩建及大修后的煤气管道必须经严密性试验和全面检查验收合格后才能送气。（）
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下列关于公共利益的说法正确的是（）