— This sweater is too small. Would you mind giving me a bigger one? 

—  _____. Here you are. [ ]

A. I disagree

B. Good idea

C. Thanks a lot

D. Not at all

通过采取技术和管理手段使事故发生后不造成严重后果或使后果尽可能减小，这是()。

A．事故预防

B．事故控制

C．安全管理

D．事故对策