在研究“光照对黄粉虫幼虫生活的影响”时（1）提出的问题是______（2）做出的假设是______（3）设计实验时，给黄粉虫幼虫提供______两种环境，观察黄粉虫幼虫对环境的选择，这两种环-七年级生

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