问题
判断题
三相有功功率有（两表法）和（三表法）两种测量方法。
答案
参考答案：对
搜题请搜索小程序“爱下问搜题”
三相有功功率有（两表法）和（三表法）两种测量方法。
参考答案：对
选择下列词汇或短语完成下面对话。将正确的字母填入空白处。
B：Our family is going to 小题1:__ a picnic in the park． A：Fantastic! Now it’s the right weather for outdoor 小题2: B：Yes．What about you? A：I will go to see my grandparents with my mum． B：How often do you usually go to 小题3: them? A：About twice a month．You know, I’m very 小题4:with my schoolwork and my grandparents live very far from my home, about two hours by car． B：But you are lucky．My grandparents live even farther．It takes eight hours to go by 小题5:． A：Really? Anyway, I hope you can enjoy yourselves． B：Thank you! |