问题
解答题
举例说出日常生活中，哪些东西是对称的？
答案
推拉门、蜜蜂，衣服（答案不唯一）
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举例说出日常生活中，哪些东西是对称的？
推拉门、蜜蜂，衣服（答案不唯一）
| 完形填空。 | ||||
| Hello, everyone! I have something to 1 you . After school, we are going to 2 some cleaning. The radio says it will be 3 in the night, so please don't forget 4 the windows . The temperature will fall 5 zero tomorrow morning. Please remember to put on 6 clothes . Mr Black is ill and now he's in 7 . I hope you will go and see him. But you don't need to buy 8 for him . By the way , there's 9 homework for you. You must finish it and 10 it to school tomorrow morning . Now let's begin our cleaning. | ||||
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下图是探究物质燃烧条件的3个对比实验：
（1）根据各实验得到相应的燃烧条件有：
| 实验1 | ______ |
| 实验2 | ______ |
| 实验3 | ______ |