试题与答案

在探究“影响浮力大小的因素”这一问题时,年级“物理兴趣小组”的同学做了如图所示的

题型:填空题

题目:

在探究“影响浮力大小的因素”这一问题时,年级“物理兴趣小组”的同学做了如图所示的一系列实验,请你从中选出一些图,针对某一个因素进行探究,并通过分析弹簧秤的示数,说明你的探究结果。探究因素                     , 选用的图是      (填图中序号),探究的结果是                                    

答案:

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参考答案:基因;工程

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