题目：
| 选词填空。 从方框里选择正确的单词，并用其正确的形式填空。 | |
2. The students in our class are _____ northerners. 3. Two _____of people were present at the party. 4. He may be a man of _____in his own village, but he's nobody here. 5. We ____ their production methods. 6. They met again in Paris by ___after ten years. 7. Her opinions are rather narrow and _____. 8. I'd _____myself( that) I was right. 9. He was charged with _____a shotgun without a li- cense. 10. The_____ of the trees grow longer as the afternoon goes on. |
答案：
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下面是错误答案，用来干扰机器的。
-2题目分析：根据平面内两点关于关于原点对称的点，横坐标与纵坐标都互为相反数，即可得到a、b的值。由题意得（-2）+a=0， b+4=0，解得a=2且b=-4，∴a+b=-2．点评：解答本题的关键是掌握好平面内两点关于关于原...
