问题
填空题
重要设备和设备构架应有（）根与主地网不同地点连接的接地引下线，每根接地引下线均应符合（）及机械强度的要求，连接引线应便于定期进行检查测试。
答案
参考答案：两；热稳定
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重要设备和设备构架应有（）根与主地网不同地点连接的接地引下线，每根接地引下线均应符合（）及机械强度的要求，连接引线应便于定期进行检查测试。
参考答案：两；热稳定
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| Look! This is a photo of my 1 . These are my 2 . My father is a teacher and my mother is a worker. I have an elder sister. 3 name is Mary. She is fourteen. I am 4 . We are in the same school. My sister likes 5 very much. She has many sports things. She has a tennis racket, three 6 , two basketballs, four ping-pong bats and five ping-pong balls. We often watch basketball games 7 TV on Saturdays. What's my favourite sport? Can you guess? Yes, it's 8 I 9 basketball after school every day. 10 my mother doesn't like basketball. She thinks it's boring. | ||||
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