某中学的课外活动小组学生为了调查该地某湖泊的水质污染原因,在注入湖泊的4个主要水源入口处采集水样,检测结果如下头率利果语方团那表:(注:硫化氢是蛋白质等有机物分解的产物。纤毛虫主要以有机颗粒为食,软体动物等其序婷它动物以细菌及浮游生物等为食)临旧市子。(9分)(1)根据表中结来自果回答下列问题:①上述不同入口水源污染主要来自___
试题答案:(1)①生产和生活污水(2分)D(1分) ②水体受污染的程度越严重,对生物的多样性破坏越大。(1分)(2)受污染的湖泊中含有大量的氮、磷等矿物元权素,这些元素能促进水3...
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太恐怖了,不同医院的乙肝定性检测结果居然完全不来自一样!!
乙肝的2对半检测偶有偏差也很正常,不知道楼主两次检查间360问答隔了多久。不过楼主的表面抗体4.38有点偏低了,应该是对乙肝病毒没有保护力的,最好是去注射下疫苗。如果楼主对结果有...
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paperyy线上改重蓝色代表啥?
paperyy线上改重蓝色表示论文修改的部分。 检测系统共设定了4种不同的颜色表示检测结果中的不同的文字重合情况: 绿色表示未检测到重合情况。红色部分就是属于严重的重复部分,一般...
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揭秘如何选择游显财矿长重式获正确的光电传感器?
随着全球市场对于产品的需求不断推动着生产,对于以低成本和高质量能够提供这些产品和元件的高速自动化过程的要求不断提高。因为主观视觉检验技术明显不能适应高速检验盒控制的要求,所以引入...
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手机维修责逐玉运置烟集孔所激另店黑幕,手机坏了你还型离八属片湖张边敢拿去修么
如果三星手机出现系统或硬件问题,为了您手机可以确保使用正品配件及专业的维修,建议您将手机到当地三星服务中心,由工程师为您检测及处理机器。注:由于不同机器出现问题有所区别,如果手机...
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手机换屏售后点要来自580,修理店要400说是原装360问答可信吗
如果三星手机出现系统或硬件问题,为了您手机可以确保使用正品配件及专业的维修,建议您将手机到当地三星服务中心,由工程师为您检测及处理机器。注:由于不同机器出现问题有所区别,如果手机...
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家居装修**最新甲醛标准是多少?
0.1毫克。甲醛检测**是有明确的**,分别是GB/T1888360问答3-2002和GB/T50325-2020,是目前实施的两个讲推标准**。前者**的甲醛浓度不能超过0.1...
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两次血常规检测,两家医院白细胞检测联省体结果不同(同一天),第一次21点多,第二次*****.
白细胞总数高于10,通常被认为是异常,儿童剧烈哭闹等因素都可导致白细胞数量增高。在安静和放松状态下360问答较低、活动和餐后适当增高、下午能研米斗爱侵银抗月案较上午偏高,一天之过...
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论文查重系统地头展革孔七素末宣倒济之间有什么区别?
不同论文查重系统有什么区别?360问答顺利毕业是一件大事,毕业也就意味着走进新的生活,这就是大学的终点,也是步入**新的起点,对我们的人生很重要。在写毕业论文的过程中,进行论文查...
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什么牌子的儿童家具好
一套好的来自儿童家具,会让你的孩子更轻松的学习,更开心的玩耍噢。但最近查360问答出由几个牌子出了问题噢,你注意哈。1意创费.七彩人生、酷漫居、宜家和松堡王国旗下储物柜或床头柜,...
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****************的对比
yolo系列和ssd发表的时间顺序是******,ssd,yolov2,yolov3,当然现在yolov4也出现了。这个是我之前在看完******之后阅读ssd站酸八们假息据两论...
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测试误差产生原因与处理方法
任伟张广玉赵桂君(国土资源部实物地质资料中心,北从先哪京101149)摘要误差在测定过程中是很难避免的。本文提出了误差的分类,分析了误差的产生原因和消除方法。在实际工作中,要认清...
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测试误差产生原因与处理方法
任伟张广玉赵桂君(国土资源部实物地质资料中心,北京101149)摘要误差在测定过程中是很难避免的。本文提出了误差的分类,分析了误差的产生原因和消除方法。在实际工作中,要认清误差,...
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