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某校生物兴趣小组的同学用如图1所示的装置进行探究活动装置中玻璃板与无色透明钟罩之间用凡士林密封透明钟罩内放一只盛有某种液体的小烧杯．请根据 Template






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tomski某校生物兴趣小组的同学用如图1所示的装置进行探究活动装置中玻璃板与无色透明钟罩之间用凡士林密封透明钟罩内放一只盛有某种液体的小烧杯．请根据 coloring
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某校生物兴趣小组的同学用如图1所示的装置进行探究活动装置中玻璃板与无色透明钟罩之间用凡士林密封透明钟罩内放一只盛有某种液体的小烧杯．请根据 sketch template
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【题目 某生物小组的同学进行探究生长素（ IAA ）促进插条生根最适浓度的预实验，结果如图 1 所示，在预实验的基础上，他们又进一步设计如 百度教育 sketch template
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某学兴趣小组的同学对一份固体样品进行了探究．通过实验已确定该样品由氧化铁和铁粉混合而成他们称取了136g固体样品用图1所示的装置继续 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
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某物理小组的同学用如图1所示的装置来研究水的沸腾．从点燃酒精灯加热开始计时当液体中有气泡上升时每隔1min记录水的温度如下表所示 时间 sketch template
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某化学兴趣小组设计了一组“喷泉 实验装置如图1所示1A装置仪器a的名称铁架台．若此装置打开止水夹出现“喷泉 现象则广口瓶内生的 sketch template
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题目生物小组用藻探究光合作用是否以二氧化碳作为原料BTB水溶液颜色变化可反映出水中二氧化碳含量变化原理如图1所示依据这一原理同学 sketch template
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某物理小组的同学用如图1所示的装置来研究水的沸腾．从点燃酒精灯加热开始计时当液体中有气泡上升时每隔1min记录水的温度如下表所示 时间 sketch template
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题目某校化学小组在研究燃烧的条件时采用了控制变量的方法如图所示实验其中红磷和白磷均放在薄铜片上观察到白磷燃烧红磷不燃烧．由此判断 sketch template
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某研究性学习小组为了探究酶的特性，用某种酶进行了以下四组实验，实验结果如图所示，下列相关说法不正确的是 A．做图1所示的探究实验时不宜 sketch template
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水的组成探究实验详解 sketch template
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某校化学小组在利用盐酸和氢氧化钾溶溶液探究酸碱中和反应时利用数字化传感器测得烧杯中溶液pH的变化图象如图1所示1该实验是将 逐滴滴入到盛 sketch template
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14．某同学用如图1所示的装置来探究CO2SO2与澄清石灰水的反应结果通入CO2可以看到先浊后澄清的现象但通入SO2看不到浊现象经 sketch template
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某化学兴趣小组的同学在学习了纯碱Na2CO3的性质后联想到家中蒸制馒头时常用的物质小苏打NaHCO3于是采用市售的小苏打样品进行了 sketch template
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物理兴趣小组的同学利用星期天开展一次登山活动想利用所学的物理知识测量花果山的高度．若已知在竖直方每升高10 M大气压强减小Δp且山下的 sketch template
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某物理兴趣小组利用如图甲所示的装置进行验证动量守恒定律的实验．在足够大的水平平台上的A点放置一个光电门水平平台上A点右侧擦很小可忽略不计 sketch template
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某物理实验小组的同学用如图甲所示的器材“探究电流跟电阻的关系 其中电源电压为6V．动变阻器上标有“35Ω1A 字样．阻值分别为5Ω10Ω sketch template
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某同学拟选择一种半透性的膜材料用于自制渗透计他采用如下图1所示的装置对收集到的四种膜材料甲乙丙和丁进行试验得到了倒置漏斗中的液面 sketch template
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实验室内某兴趣小组利用三只收集满二氧化碳气体的烧瓶按如图 1 所示的 装置利用传感器对二氧化碳性质进行探究三个注射器内各装入水饱和 sketch template
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高中实验《探究弹力与弹簧伸长量的关系》 知乎 sketch template
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动物细胞培养是动物克隆的基础如下图所示abc表示现代生物工程技术分别表示其结果请据图回答下列说法正确的是 A sketch template
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题目某研究小组测定小麦种子成熟过程中相关物质干重的百分含量结果如下图所示请回答1在小麦种子成熟过程中种子中淀粉含量的变化趋势是 sketch template
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题目如图甲所示是某实验小组在“测量小灯泡的电阻 实验中设计的电路图所用小灯泡标有“25V 字样． 1该实验的原理是 ．2该组 sketch template
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某研究性课题小组的同学对植物生长素非常有研究兴趣．设计了如下实验以探究单侧光是使胚芽鞘尖端的生长素转移了还是将光侧的生长素分解了．1 sketch template
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同学们在“探究液体内部的压强 时进行了如下探究．1如图1所示小聪将料袋套在手上然后伸入盛有水的容器中感受到料袋紧紧的套在手上 sketch template
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如图甲所示是某实验小组在“测量小灯泡的电阻 实验中设计的电路图所用小灯泡标有“25V 字样1该实验的原理是 2该组同学连接好 sketch template
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为探究生活中两种常见的有机物的性质某同学设计如下实验请根据题目要求填写下列空格1如图1所示试管中装乙醇产生的气体为 2如图2 sketch template
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为探究生活中两种常见的有机物的性质某同学设计如下实验请根据题目要求填写下列空格 I如上图1所示试管中装乙醇则反应现象为钠沉于无水 sketch template
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实验小组的同学进行电磁学实验．1在如图1所示的实验中当闭合开关可观察到磁场中属棒ab在导轨上运动在此过程中电能转化为机械能．2 sketch template
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某同学设计如下实验研究有关CO2的性质1如图1所示A瓶盛有澄清的石灰水B瓶盛有紫色石蕊试液C杯有高低不同的燃着的蜡烛．回答下列问题 sketch template
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题目同学们在“红十字急培训 中学习了“人工吸 的方法操作步骤如图1所示请用生物学知识对其重要操作的目的和原理做出解释 1清除 sketch template
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某同学在“用单测定重力加速度 的实验中进行了如下的实践和探究用游标卡尺测量球直径的情况如图1所示则球直径为206cm．把球用 sketch template
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题目某同学利用图1所示的实验装置探究物块在水平桌面上的运动规律．物块在重物的牵引下开始运动重物落地后物块再运动一段距离停在桌面上．从 sketch template
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