--- It’s hot. Would you mind my__________ the window?

---- ____________. Do it as you like, please!

A．to open; Ok

B．opening; Certainly not

C．closing; Of course

D．open; Good idea

半微量法测定肉蛋及制品中挥发性盐基氮，其滴定终点为（）。

A、深蓝色

B、淡黄色

C、桃红色

D、亮绿色