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新的公共卫生方法的精髓是（）
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椎间孔上壁为______，下壁为_______，前壁为_______，_______，后壁为_______。故椎间盘突出常压迫脊神经根。
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吾乡一贯道盛行，所谓‘末法时期，稗贩如来，宣说开示像似正法，到处皆是’，令人感慨万千，甚至有类出家人亦交相往来，晚辈年轻，然略识佛法，于心不忍，请示对此辈法师应如之何？
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矿山机械中常用液压马达有（）；（）、柱塞马达。
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When I was 13 my only purpose was to become the star on our football team. That meant Miller King, who was the best at our school.Football season started in September and all summer long I worked out. I carried my football everywhere for .Just before September, Miller was struck by a car and lost his right arm. I went to see him after he came back from . He looked very , but he didn’t cry.That season, I all of Miller’s records while he the home games from the bench. We went 10-1 and I was named most valuable player, I often had crazy dreams in which I was to blame for Miller’s .One afternoon, I was crossing the field to go home and saw Miller going over a fence—which wasn’t to climb if you had both arms. I’m sure I was the last person in the world he wanted to accept from. But even that challenge he accepted. I him move slowly over the fence. When we were finally on the other side, he said to me, “You know, I didn’t tell you this during the season, but you did .Thank you for filling in for .” His words freed me from my bad . I thought to myself, how even without an arm he was more of a leader. Damaged but not defeated, he was ahead of me. I was right to have him. From that day on，I grew and a little more real.
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相见时难别亦难，东风无力百花残。
春蚕到死丝方尽，蜡炬成灰泪始干。
晓镜但愁云鬓改，夜吟应觉月光寒。
蓬山此区无多路，青鸟殷勤为探看。简析诗中的两个“难”字的含义。
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由厂部直接编制全厂成本计划的方法，是采用（）。
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相对精度在（）以上的单杠杆秤，通常称为天平.
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污染物依靠重力作用可与水分离叫（）。
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在登记供应商信息时，要采用不同的标准来登记。