问题
填空题
（）是剪切机最主要的结构参数，它决定了剪切机的高度。
答案
参考答案：刀片行程
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（）是剪切机最主要的结构参数，它决定了剪切机的高度。
参考答案：刀片行程
| 短文改错 |
| All of us know the old saying "Practice make perfect". It tells us unless we want to realize our aim, we should practise and one day we will make it. It's easy to understand. Once I wanted to learn swimming. At first I found difficult to control my body. I just sank into the water. I feel very frightened. Then I watched others who were good at them and asked them the key to succeed. I went to the swimming pool every day, learned from them and practised. A day, when my friend pushed me into the swimming poo1, I sudden suddenly found that I could swim. How exciting I was! Now I can swim much more better than before. |