问题
单项选择题
在进行绝缘配合时，220kV相间最大操作过电压宜为相对地操作过电压的( )倍。
A．1.1～1.2；
B．1.2～1.3；
C．1.3～1.4；
D．1.4～1.5。
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
在进行绝缘配合时，220kV相间最大操作过电压宜为相对地操作过电压的( )倍。
A．1.1～1.2；
B．1.2～1.3；
C．1.3～1.4；
D．1.4～1.5。
参考答案：C
| 完形填空。 | ||||
| Hello! My name is John. 1 members (成员) are in my family: my parents, my sister and I. My 2 is Frank, and he is 39. 3 phone number is 360-9821. My mother's name is Susan, and 4 is 37. My sister is a nice 5 . She is 6. Her 6 is Sonia. I'm 12. I'm a student (学生). Look! That's my 7 . Is it black? No, it isn't. It's 8 . It's a blue backpack. | ||||
|