2023年1月12日
英语
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时态
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时间
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- 现在
- 过去
- 将来
- 过去将来
状态
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- 一般
- 完成
- 进行
- 完成进行
组合
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- 一般现在
- 动词一般形式
- 事实,I eat carrots
- 习惯,I play basketball
- 预计,The bus leaves at 8 pm
- 现在完成
- have/has + 动词过去分词
- I have gone shanghai
- 现在进行
- am/are/is + 动词现在分词
- I am eating a carrot
- 现在完成进行
- have/has + been + 现在分词
- I have been eating carrot
- 一般将来
- will(shall) + 一般形式
- I will go to beijing
- I am going to beijing
- I am about to beijing
- I am to beijing
- The bus leaves at 8 pm
- 将来进行
- will + be + 现在分词
- I will be eating carrot at 9 pm
- 将来完成
- will + have + 过去分词
- I will have eaten a carrot at 9 pm
- 将来完成进行
- will + have + been + 现在分词
- I will have been eating a carrot at 9 pm
- 一般过去
- 过去进行
- was/were + 现在分词
- I was eatting carrot at yesterday 9 pm
- 过去完成
- had + 过去分词
- I had eaten 5 carrots for lunch yesterday, so i wasn’t hungry at all yesterday afternoon
- 过去完成进行
- had + been + 现在分词
- I had been eatting carrots at yesterday 9 pm
- 过去将来一般
- would + 一般形式
- I would go to beijing
- 过去将来进行
- 过去将来完成
- 过去将来完成进行
算法
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- 原地哈希解决: 数组中未出现的最小正整数; 数组中出现1次或2次,找出出现2次的; 数组中缺失的数;