---I did very well in the Maths exam yesterday.

---I did _____ . I got full marks.

A．no better

B．no worse

C．even worse

D．not better

如果有多个中断同时发生，系统将根据中断优先级响应优先级最高的中断请求。若要调整中断事件的响应次序，可以利用

A．中断嵌套

B．中断向量

C．中断屏蔽

D．中断响应