第6题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. She dislikes fireworks. B. She has plans for the evening. C. She doesn’t feel like going out. D. She has to get theater tickets. 参考答案:B 答案解析:[听力原文]
M:Let’s go watch the fireworks tonight.
W:I have tickets to the theater.
Q:What does the w
第7题:[多选题]大气过电压是指( )。 A. 操作过电压 B. 直接雷击过电压 C. 弧光接地过电压 D. 感应雷击过电压 E. 铁磁谐振过电压 参考答案:BD