下列选项中不会造成己内酰胺装置苯己聚结器界面过高的是（）。
A、聚结器底液管堵
B、水洗量过大
C、己萃塔夹带
D、生产负荷低
参考答案：D
根据各组对话内容，从下面提供的5个选项中选出能填入空白处的最佳选项。
A:I’m sorry to have kept you waiting for so long.
B:()I’ve been killing time by listening to music.
A．Sure. What is it
B．It’s very nice of you to say so.
C．It’s nothing.
D．Have a nice trip!
E．Certainly, Here you are.
粉料配制为什么要有热混和冷混？
