__________it is raining, you’d better take a taxi.A．BecauseB．AsC．TillD．After-八年级英语

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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
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