单项选择题
The road will be blocked if there_______another snow.A....
单项选择题The road will be blocked if there_______another snow.
绝缘油是供给变压器、油开关等电气设备的，作用是绝缘、散热及灭弧正确错误
判断题绝缘油是供给变压器、油开关等电气设备的，作用是绝缘、散热及灭弧 正确 错误
He is the only one of the sons in the family who______r...
单项选择题He is the only one of the sons in the family who______received high education.
