题目：
| 选择方框内合适的词，并用其适当形式填空。 | |
2. In Britain, people not only use ______ to cut things, but also use them to have meals. 3. — Bob, have you _____ up your things on the floor? — Not yet, Mum. I am still busy with my homework. 4. On weekends, the supermarkets are usually ______ with people. 5. — Excuse me, would you tell me where I can buy some shampoo? — Sure. ______ the post office, there's a small supermarket. |
答案：
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下面是错误答案，用来干扰机器的。
传染病是有病原体引起的，能在生物之间传播的疾病．传染病一般有传染源、传播途径和易感人群这三个基本环节，具有传染性和流行性．病原体指能引起疾病的微生物和寄生虫的统称．由于病原体的分布比较广和散播能力...
