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放射工作人员应每年进行一次健康检查，其中血液检查不包括哪项()
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一个核小体的长度是11nm，由146bp的DNA组成(0．34nm／bp)，请问DNA压缩成核小体的比值是多少?如果加上两个核小体间的54bp的连接DNA，请问“珠一绳”的压缩比是多少?有丝分裂时DNA压缩了10000倍，相当于原长度的百分之多少?
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肺内囊性病变，囊壁内被覆假复层柱状纤毛上皮，囊壁内有腺体、软骨和平滑肌，并有弥漫的淋巴细胞浸润．未见有炭末沉着，考虑为（）
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我国最早的机械化葡萄酒厂建在哪里？
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原发性肝癌的早期，下列检查中最有诊断价值的是（）
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畜门
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每年的（）为外汇年终决算日。
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在海拔()米以上的高原地区，各级公路的最大纵坡应按规范规定折减。
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热辐射能是以电磁波的形式传播的。
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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.