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问题
问答题 简答题
避雷器的作用是什么？
答案
参考答案：
避雷器是用来限制过电压，保护电气设备的绝缘免受雷电和操作过电压的危害
选择题
—Your spoken English is much better now.
—Thank you. Our English teacher asks me _____ English as _____ as I can.
A. to speak, many
B. to speak, much
C. not to speak, many
D. not to speak, much
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报关编码
未硫化橡胶废碎料、下脚料及其粉
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