Fires need oxygen (氧气). Without oxygen they will die. Cover a fire with . water, sand, or sometimes with your coat. (Passage 3)

admin2014-03-13  53

问题 Fires need oxygen (氧气). Without oxygen they will die. Cover a fire with . water, sand, or sometimes with your coat. (Passage 3)

选项

答案火需要氧气。没有氧气火就要熄灭。用水,沙子,有时还要用衣服来盖住火(来灭火)。

解析
转载请注明原文地址:https://jikaoti.com/ti/VRiYFFFM
0

最新回复(0)