问题
单项选择题
型号YZR225M1-8电动机在环境温度40°C时，允许温升135°C，其绝缘等级应当是（）
A．B级
B．C级
C．F级
D．H级
答案
参考答案：D
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型号YZR225M1-8电动机在环境温度40°C时，允许温升135°C，其绝缘等级应当是（）
A．B级
B．C级
C．F级
D．H级
参考答案：D
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| I'm a student in Grade Seven in a middle school. I'm thirteen years old. Today is 1 birthday. I had a party at my home and 2 of my friends came. They 3 me many things. My mum made many kinds of delicious food 4 us. She asked me to eat an apple first. She said it could 5 me "ping ping an an" My grandmother asked me to eat a bowl of noodles .She said I could live a 6 life by doing this. Then my grandmother put an egg on my head. I asked her 7 she did this? She 8 me it meant I could be safe every year. These things are very 9 . How happy I am! Thank you , my friends and my family, for 10 me a wonderful day! I'll never forget it. | |||
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