I never seem to lose any weight, __________I try hard.A．even thoughB．no matter howC．as ifD．ever sinc

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• 探究试验我们已经学习了光对鼠妇的影响，其实鼠妇的生活还受土壤的潮湿程度的影响．请你以土壤的潮湿程度为变量，设计一个探究实验来证明“鼠妇的生活受土壤的潮湿程度的影响”-生物
• 小东为探究“光对鼠妇生活的影响”，做了如下实验：①用硬纸板制成一个长方形的纸盒（上方没有盖），将纸盒分成长度相等的两部分，一部分用黑纸包好形成一个黑暗的环境，另一部分不-生物
• 探究非生物因素对鼠妇的影响．（1）将10只鼠妇放在解剖盘中央，解剖盘一侧盖上黑纸板，10分钟后情况会怎样？从而可以得出什么结论？某学生照上面的步骤进行探究，10分钟后在未盖黑-生物
• 在探究“湿度对鼠妇生活的影响”实验中，作为实验变量的应是（）A．水分B．光C．温度D．空气-生物
• –The Sweater is too big for me. Can you give me a one?–OK, here you are.A．largerB．smallerC．fatterD．s
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• 我是在______的环境中捉到鼠妇用于实验的．-生物
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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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• 鼠妇生活在______，______的地方．-生物
• 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