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为了探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经 Template






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tomski为了探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经 coloring
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为探究环境因素对蚯蚓生活的影响生物兴趣小组同学设计了多组对照实验下列对照实验变量设计不正确的是A有空气和无空气 B温度和湿度C 20 sketch template
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题目为探究环境因素对蚯蚓生活的影响有同学设计了实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经 sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取3个大小一样的广口瓶分别贴上甲乙丙标签．在甲丙瓶中放入湿润的肥沃土壤在乙瓶 sketch template
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14．为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的广口瓶贴上甲乙标签．在甲瓶中放入湿润的肥沃土壤在乙瓶中放入 sketch template
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如图是某兴趣小组的同学设计的探究蚯蚓习性的实验装置图你认为他们探究的问题是 A蚯蚓对光线有怎样的反应B湿度对蚯蚓生活有怎样的影响C sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放人湿润的肥沃土壤在乙瓶中放入经烘干 sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经烘干的 sketch template
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为了探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经 sketch template
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为了探究环境因素对蚯蚓生活的影响有同学设计了如图实验取3个大小一样的广口瓶分别贴上甲乙丙标签．在甲丙瓶中放入湿润的肥沃土壤在乙瓶中放 sketch template
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为了探究环境因素对蚯蚓生活的影响生物兴趣小组同学设计了多组对照实验下列对照实验变量设计不正确的是 A．有空气和无空气B．温度与湿度C sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的玻璃瓶贴上甲乙标签在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经烘干的 sketch template
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题目为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的玻璃杯贴上甲乙标签在甲杯中放入湿润的肥沃土壤在乙杯中放 sketch template
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为了探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的广口瓶贴上甲．乙标签在甲瓶中放入湿润肥沃的土壤在乙瓶中放入烘干 sketch template
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题目 为探究环境因素对蚯蚓生活的影响小斌同学进行以下的探究实验取两个大小一样的广口瓶分别贴上甲乙标签．在甲瓶中放入湿润的肥沃土壤 sketch template
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为探究环境因素对蚯蚓生活的影响生物兴趣小组同学设计了多组对照实验下列对照实验变量设计不正确的是A有空气和无空气 B温度和湿度C 20 sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取3个大小一样的广口瓶分别贴上甲乙丙标签．在甲丙瓶中放入湿润的肥沃土壤在乙瓶 sketch template
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为了探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的广口瓶贴上甲．乙标签在甲瓶中放入湿润肥沃的土壤在乙瓶中放入烘干 sketch template
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如图是某兴趣小组的同学设计的探究蚯蚓习性的实验装置图你认为他们探究的问题是． A．蚯蚓对光线有怎样的反应B．湿度对蚯蚓生活有怎样的影响C sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的瓶子贴上甲乙标签．在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经烘干的 sketch template
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下列选项中不是种子萌所必须的环境条件的是 A适宜的温度B充足的空气C肥沃的土壤D一定的水分——青夏教育精英家教—— sketch template
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题目为了探究环境因素对蚯蚓生活的影响生物兴趣小组同学设计了多组对照实验下列对照实验变量设计不正确的是 A有空气和无空气B温度与 sketch template
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为了探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取2个大小一样的广口瓶分别贴上甲乙标签将一定量湿润的肥沃土壤均分为2份在甲瓶 sketch template
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为了探究环境因素对蚯蚓生活的影响有同学设计了如图实验取3个大小一样的广口瓶分别贴上甲乙丙标签．在甲丙瓶中放入湿润的肥沃土壤在乙瓶中放 sketch template
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通过学探究已知蚯蚓生活在阴暗潮湿的环境中．因此在学探究过程中如果作出的假设是“湿度对蚯蚓生活有影响 那么变量就应是 A光B sketch template