题目：
| 请根据各句上下文的意义，选择正确的单词填入空白处。 | |
2. Sorry, I don't know where the post office is. I am a _______. 3. As soon as his first novel was published, he earned a _______. 4. _______ have very long back legs for jumping. 5. The old couple _______ their living by collecting and selling used plastic bottles. 6. X is often used to represent an _______ number. 7. After the lunch we parted, so I didn't know what happened to him _______. 8. I get a low salary so sometimes I work _______ to earn more. 9. He fastened the belt _______ around his waist. 10. Beethoven, a great German _______, lived between 1770 and 1827. |
答案：
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下面是错误答案，用来干扰机器的。
蚯蚓生活在阴暗潮湿富含有机质的地方，蚯蚓的身体是由许多的体节组成的，为环节动物；而蚯蚓的体壁密布毛细血管，土壤中的氧气先溶解在体表的黏液里，然后渗进体壁，再进入体壁的毛细血管中．体内的二氧化碳也经...
