31．請(qǐng)寫(xiě)出如圖18所示的幾個(gè)實(shí)驗(yàn)所揭示的物理道理: 【查看更多】

 

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請(qǐng)寫(xiě)出如圖18所示的幾個(gè)實(shí)驗(yàn)所揭示的物理道理：

甲：                                                                     

乙：                                                                     

丙：                                                                     

�。�                                                                     

 

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請(qǐng)寫(xiě)出如圖18所示的幾個(gè)實(shí)驗(yàn)所揭示的物理道理：

甲：                                                                     
乙：                                                                     
丙：                                                                     
�。�                                                                     

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請(qǐng)寫(xiě)出如圖18所示的幾個(gè)實(shí)驗(yàn)所揭示的物理道理：

甲：                                                                     
乙：                                                                     
丙：                                                                     
�。�                                                                     

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請(qǐng)寫(xiě)出如圖18所示的幾個(gè)實(shí)驗(yàn)所揭示的物理道理：

甲：                                                                     

乙：                                                                      

丙：                                                                     

�。�                                                                     

 

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請(qǐng)寫(xiě)出如圖18所示的幾個(gè)實(shí)驗(yàn)所揭示的物理道理：

甲：                                                                     
乙：                                                                     
丙：                                                                     
�。�                                                                     

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