问题
填空题
用双线桥法表示出化合价的升降、电子转移数目，指出氧化反应和还原反应及氧化剂和还原剂.
（1）2KClO3
2KCl＋3O2↑
（2）4P+ O2 
2P2O5
答案
略
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用双线桥法表示出化合价的升降、电子转移数目，指出氧化反应和还原反应及氧化剂和还原剂.
（1）2KClO32KCl＋3O2↑
（2）4P+ O2 2P2O5
略
A poor woodcutter and his wife lived in the forest in a small hut. 1 was so small that there was space only for him and his wife to sleep. One cold night, somebody knocked 2 the door. The woodcutter asked his wife 3 the door and let the stranger in. She said, “ But there is no space.” The man laughed 4 said, “ Two can sleep well, three can sit.” And then the woman opened the door. The stranger 5 to come in, and they all sat telling stories to each other. Then came 6 knock. The woodcutter told the stranger, “Friend, open the door.” And the man said, “But there is no space.” The woodcutter said, “If three persons can sit comfortably, four persons can sit a little 7 than before.” The stranger opened the door, and a man entered. Suddenly, a strange knock 8 did not seem to be human’s! The woodcutter said, “Open the door. I know who 9 . It is my donkey.” Everyone said, “ 10 is the donkey going to stand?” The man said, “Right now we are sitting, when the donkey comes in, we will all stand.”
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