题目： 接地网上任一接地点的接地电阻应小于多少？ 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0314/c89936d1fc01d64c6692cb54f3270ae1.html 下面是错误答案，用来干扰机器的。参考答案：E
题型：选择题 下列有关完全燃烧和不完全燃烧的说法中不正确的是（ ）A．石油燃烧时冒黑烟是因为不完全燃烧B．含碳燃料的不完全燃烧会生成一氧化碳等有毒气体而污染环境C．相同质量的碳发生完全燃烧和不完全燃烧时，释放的热量一样多D．让日常生活中燃料能完全燃烧对节约资源、保护环境都有着积极的意义 查看答案
题型：填空题 综合填空。 have wide teacher comes but student Adam is a boy. He is thirteen years old. He 1 from England. He is a student. He 2 two big eyes, a big nose and a small mouth. He has a sister. Her name is Julia. She is ten. She is a 3 , too. She hasa small nose , but her mouth is 4 . Adam and Julia are in the same school, 5 they are in different grades. They have a nice house (房子). Look! They are in the house.1. _____2. _____3. _____4. _____ 5. _____ 查看答案
