测定水中亚硝酸盐是利用重氮偶联显色反应，生成红紫色染料。
参考答案：对
____ almost the whole time of mine, the work made me extremely tired.[ ]
A. Occupying
B. Occupied
C. Being occupied
D. To occupy
Pentium 4微处理器在实模式下工作时，中断向量表中存放的中断服务程序入口地址占用几个字节
A．2
B．4
C．6
D．8
