Science

2007-08-07 8:04 pm
Food contains____________________energy.When food burnt, carbon dioxide and_____________are given out.

回答 (2)

2007-08-07 8:18 pm
✔ 最佳答案
1) chemical
2) energy
2007-08-07 8:20 pm
Food contains_____chemical_______________energy.When food burnt, carbon dioxide and____heat_________are given out.


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