We all feel after hearing of the news.A．excited；excitedB．exciting；excitingC．excited；excitingD．exciti

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• 根据光对鼠妇生活的影响实验回答问题：（1）鼠妇喜欢生活在______环境中．（2）在实验中进行多次统计的目的是______．（3）在实验中用10只鼠妇而不用1只鼠妇的目的是______．-生物
• we deal with our problems, we can easily become unhappy.A．UntilB．BecauseC．UnlessD．If-八年级英语
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• 如果你翻动花园、庭院中的花盆或石块，常常可以找到鼠妇．当你搬开花盆或石块，鼠妇很快就爬走了．某同学对此进行了探究，请回答下列问题：（1）提出问题：鼠妇喜欢生活在阴暗的环-七年级生物
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• 取长70厘米，宽30厘米左右的纸盒，在纸盒底层放一层湿土，以纸盒的中线为界，一侧盖上纸板，另一侧盖上玻璃板，这样纸盒就可以形成明暗两种环境．在纸盒内放入20只鼠妇．（1）为-生物
• He has lived here for about 20 years ,so he has friends here.A．most ofB．lot ofC．plenty ofD．many of-九
• （1）探究“光对鼠妇生活影响”实验．提出问题是：光对鼠妇生活有影响吗？作出假设是：______．设计实验：该实验的变量是______，在设计实验时要给鼠妇提供______和______两种环境，以-生
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• 你一定和同学们一起寻找过鼠妇，一般最容易找到鼠妇的环境是（）A．黑暗干燥的沙土环境B．黑暗潮湿的土壤环境C．海边礁石环境D．太阳底下土壤表面环境-生物
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• 蚯蚓能疏松土壤，提高土壤肥力．请你参与“土壤湿度对蚯蚓生活的影响”的探究实验：如图，制作一个箱子，以箱子内横轴中线为界，一边放潮湿的土壤，另一边放相同高度干燥的土壤，-七年级生物
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