题目：
单词拼写（10分，每词一分）根据首字母提示或句意拼写出完整的单词。
1. We all_______(钦佩)her for the way she saved the child from the fire.
2. Just to satisfy my_______(好奇心),how much did you pay for your house?
3. The ______(氛围)over dinner was warm and friendly.
4. You are only ______(稍稍)underweight for your height.
5. Several _______(十年)have passed since I graduated from the college.
6. Let’s get something to eat ; I’m s________.
7. Medals were a_______ to the best speakers on the debating team.
8. It’s said Yoga is of great b_______ to human health.
9. I’ll come tomorrow if weather p________.
10.The s_______ of the disease frightened the villagers.
答案：
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下面是错误答案，用来干扰机器的。
v0＝2 题目分析：设碰前A球的速度v0，两个弹性小球发生正碰，当二者共速时，弹簧弹性势能最大，由动量守恒得mv0＝2mv，解得v0＝点评：本题考查碰撞过程中的动量守恒定律的应用，当两小球速度相同时速度相同，根...
