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18．某兴趣小组的同学选取牵牛花有白�的绿色叶片进行光合作用的相关实验如图所示1为了排除叶片中原有淀粉可能对实验结果的影响需要对实验 Template






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sketch 1853 scribble
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sketch 3447 Hidan (Akatsuki) by ßeyza Karaca
sketch 871 vampire girl anime
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tomski18．某兴趣小组的同学选取牵牛花有白�的绿色叶片进行光合作用的相关实验如图所示1为了排除叶片中原有淀粉可能对实验结果的影响需要对实验 coloring
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18．某兴趣小组的同学选取牵牛花有白的绿色叶片进行光合作用的相关实验如图所示1为了排除叶片中原有淀粉可能对实验结果的影响需要对实验 sketch template
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14．学习植物生理作用的知识后某兴趣小组设计如下实验进行验证请分析回答取盆栽牵牛花植株放在暗处一昼夜后将植株枝条上长势大小相同的三 sketch template
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某生物兴趣小组的同学为研究植物的生活动设计了以下实验装置请据图分析回答注氢氧化钠溶液可以吸收二氧化碳 1首先将甲乙两个装置 sketch template
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某校生物兴趣小组的同学为了探究“绿叶在光下能够制造淀粉 设计了下列实验操作步骤如图．请据图分析1该兴趣小组提出的探究问题是 2请 sketch template
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选取绿色叶片和有白叶片的牵牛花进行光合作用的实验如图所示．1在实验中将牵牛花放在暗室一昼夜的目的是 ．2将此装置放在光下数小时 sketch template
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某中学2010级两个生物兴趣小组的同学分别做了下列探究探究I叶片背面和正面的气孔数目一样多吗小鹏将一片刚下的叶片浸在盛有50℃左右热水 sketch template
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下面是兴趣小组的同学设计的两个实验装置都是用来观察植物的蒸腾作用的请你根据示意图分析解决问题1甲乙两个实验装置中 更合理学．理由 sketch template
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某生物兴趣小组的同学为研究植物的生活动设计了以下实验装置请据图分析回答注氢氧化钠溶液可以吸收二氧化碳 1首先将甲乙两个装置 sketch template
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某生物兴趣小组的同学为研究植物的生活动设计了ABC三个实验装置实验在夏天某一清朗的上午进行．请据图分析回答1中午兴趣小组的 sketch template
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题目假某生物学兴趣小组的同学在野外考察时拍了如下一些植物照片请你协助生物学兴趣小组的同学解决如下问题1在植物分类图解的横线 sketch template
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为了探究绿色植物和种子的生活动，某兴趣小组的同学设计并进行以下实验，以下有关说法错误的是（） A利用甲装置可探究光合作用的原料是二氧化碳 sketch template
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为探究绿色植物生活动，某兴趣小组的同学设计了 sketch template
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某实验小组的同学在“绿叶在光下制 造有物 的实验中用银边天竺作为实验材料 完成了如下图所示的实验步骤请你根据以下实验 步骤回答下列问题 sketch template
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某生物兴趣小组在探究“植物的吸作用 过程中做了如下实验如图所示 实验一 实验二1实验一中选用不透光的色料袋是为了防止植物进行 sketch template
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某生物兴趣小组的同学为研究植物的生活动设计了以下实验装置请据图回答注氢氧化钠溶液可以吸收二氧化碳 1首先将甲乙两个装置放在 sketch template
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题目关于染色体DNA基因的关系叙述不正确的是 A 染色体上都有DNADNA上都有基因B DNA是染色体的组成成分基因是 sketch template
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阳小学六年级同学参加课外兴趣小组分布情况如图1参加其他兴趣小组的同学占六年级学生总数的22%2如果参加美术小组的有65人那么六 sketch template
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某兴趣小组根据实验室提供的仪器和药品进行了氧气的制备实验．1甲同学选用如右图所示的装置制取氧气．写出仪器B的名称集气瓶．甲同学应选取 sketch template
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某学校化学兴趣小组同学在学习了制取氧气这一节内容后现在实验室里用5%H2O2溶液加热制O2用带火星的木条检验木条很难复燃．同学们经过 sketch template
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某兴趣小组的同学为了探究蚂蚁的觅食行为是否与食物的气有关选用了50只蚂蚁放置在装有不同食物的料餐盒中央在ABCD处分别放置蘸清水 sketch template
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某化学兴趣小组的同学设计了如图所示的装置探究影响化学反应速率的因素 1 下图装置中使用注射器的优点是 观察量筒中液体的体积时视线要与 sketch template
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某生物兴趣小组的同学为研究植物的生活动设计了以下实验装置请据图分析回答提示氢氧化钠溶液可以吸收二氧化碳 1首先将甲乙两个 sketch template
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1某实验小组的同学在“绿叶在光下制造有机物 的实验中用银边天竺作为实验材料完成了图1所示的实验步骤请你根据以下实验步骤回答下列 sketch template
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某化学兴趣小组的同学进行粗盐提纯实验流程如图1操作依次为 ．2实验结束后该化学兴趣小组的同学计算了精盐产率若结果偏低 sketch template
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某校七年级地理兴趣小组对某区域进行野外考察根据等高线地形图回答下列问题1地理兴趣小组的同学们想登高远望图中ABCD四地最适宜 sketch template
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题目请你和下列同学一起进行学探究．Ⅰ．某生物兴趣小组的同学为了探究“绿色植物光合作用所需的某种原料 及“植物茎运输水分的部位 设计了右 sketch template
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某校兴趣小组的同学在探究“种子萌需要的环境 条件 时设计了如下实验步骤 取3个相同的无色玻璃瓶分别贴上写有甲乙丙的标签瓶底各铺 sketch template
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某生物兴趣小组的同学做了“探究玉米种子萌的环境条件 实验在甲乙丙丁四个烧杯中分别放等量的棉花再将相同数量饱满的玉米种子放在上面在 sketch template
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某兴趣小组的同学们围绕“酸碱中和反应 将学生成分若干小组开探宂活动请你和他们一起完成以下实验探究稀硫酸与氢氧化钠溶液能否生反应甲组同学 sketch template
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某化学兴趣小组的同学用所示装置做有关CO2气体的实验1甲同学将收集满CO2气体的试管倒插入紫色石蕊试液中并轻轻援试管．产生的现象有 sketch template
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某化学兴趣小组的同学利用如图所示实验装置进行实验． 1甲乙两仪器的名称是分液漏斗圆底烧瓶．2利用B装置可制取的气体有H2NO sketch template
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33．某生物兴趣小组的同学进行探究萘乙酸NAA促进插条生根最适浓度的预实验结果如图所示在预实验的基础上他们又进一步设计如下实验探究 sketch template
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27．学校化学兴趣小组的同学对一瓶溶液进行分析初步确定它是含有同种阴离子的MN的混合溶液继续分析的步骤如下 请根据上述实验过程及现象 sketch template
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化学兴趣小组的同学用如下图所示装置做中和反应实验请按要求回答问题1盛有氢氧化钠溶液的烧杯中滴入酚酞溶液溶液变为红色此时溶液的pH sketch template
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某化学兴趣小组的同学用如图所示的实验探究分子的运动请回答下列问题1如图1所示将无色的浓氨水中滴入无色的酚酞试液中观察到的实验现象是 sketch template