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1.Helium and neon which belong to a group of very unrective gases,are examples of_____________.
2.Oxygen_____________a glowing splint.
3.Water is formed from from burning food.
4.Carbon dioxide is formed from from burning food.
5.Burning absorbs heat energy.
6.Spraying water in to a fire.
7.Covering a pan fire with a lid.
8.What of th following methods puts out a fire by lowering the temperature?
一D Science既英文問題
2007-10-01 7:47 pm
回答 (2)
2007-10-01 7:50 pm
✔ 最佳答案
1.Helium and neon which belong to a group of very unrective gases,are examples of halogen2.Oxygen relights a glowing splint.
參考: me
2007-10-02 2:06 am
1.氦和氖屬於一些很不活躍的類別(元素) , 他們是_____的例子.
2.氧______一枝帶火星的木條.
3.水會由燃燒食物產生.
4.二氧化碳會由燃燒食物產生.
5.將水噴射到火種.
6.用蓋把燃燒中的煎pan 蓋住.
7.下列那個方法是靠降低溫度來滅火?
2.氧______一枝帶火星的木條.
3.水會由燃燒食物產生.
4.二氧化碳會由燃燒食物產生.
5.將水噴射到火種.
6.用蓋把燃燒中的煎pan 蓋住.
7.下列那個方法是靠降低溫度來滅火?
收錄日期: 2021-04-28 14:23:19
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