-- It's so cold! Why are your windows still open?         --- Oh, they _______．

A．aren't closing

B．won't close

C．won't be closed

D．aren't closed

核心系统中汇票/本票业务所涉及的（）BGL账户的开户集中到省行，集中管理。

A、8322、8381

B、8341、8371

C、8322、8361

D、8331、8322