按照现行规定，投资者进行证券的非交易过户不收取费用。（）
参考答案：错
解析：非交易过户经办人向申请人预收取非交易过户的一切费用并出示相应凭证。
—________ didn't you finish your homework, Jenny?
—Because my mother was ill. I had to take care of her. [ ]
A. Why
B. When
C. What
D. Where
电气设备着火时应该怎样做？严禁用什么灭火？
