问题
问答题 简答题
无千斤顶怎样更换轮胎？
答案
参考答案：
（1）拆换后轮外轮胎时，让车的内胎停在适当高度的砖头或木头上，使轮胎悬空，即可更换。
（2）拆除前轮胎后轮内轮胎时，用石头、砖头或木头将前轴和后桥垫稳，将要拆除的轮胎下面挖坑，使轮胎悬空，即可拆除。
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无千斤顶怎样更换轮胎？
参考答案：
（1）拆换后轮外轮胎时，让车的内胎停在适当高度的砖头或木头上，使轮胎悬空，即可更换。
（2）拆除前轮胎后轮内轮胎时，用石头、砖头或木头将前轴和后桥垫稳，将要拆除的轮胎下面挖坑，使轮胎悬空，即可拆除。
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| Everyone needs friends. We all like to 1 close to someone. 2 is nice to have a friend to talk , laugh ,and do things with 3 , sometimes we need to be alone. We don't always want people 4 . But we would feel lonely if we never have a friend. No two people are 5 . Friends sometimes don't get on well. That doesn't mean they no longer like each other. Most of the time they will make up and become 6 again . Sometimes friends move away. Then we feel very 7 . We miss them very much, but we can call them and write to them . It could be that we could even see them again. And we can 8 new friends. It is surprising to find out how much we like new people when we get to know them . There's more good news for people who have friends. They live longer than people who don't. Why? It could be that they are 9 . Being happy helps you stay well. Or it could be just knowing that someone cares. If someone cares about you, you take 10 care of yourself. | ||||
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Na2FeO4＋3H2↑，则电解时阳极的电极反应式是 。