塔压升高一般是怎样引起的？
参考答案：
1.原料带水；2.加热器漏；3.冷凝冷却器堵塞；4.回流过大；5.溢流管堵塞；6.进料量过大。
You are trying to determine what cost and schedule trade-off will be most appropriate for your project. You have the option to select either a more experienced person at $120 per hour who can do the task in 45 days or a less experienced person at $80 per hour who can do the same task in 65 days. A tool you can use to facilitate making the decision is ______ .
A) cost of qualityB) cause-and-effect diagramC) design of experimentsD) network diagrams
汉字代码体系中，汉字地址码指 (3) 。
A．计算机内部实际处理汉字的汉字编码B．确定汉字字形点阵的代码C．汉字(点阵式)字模库中存储汉字字形信息的逻辑地址码D．用于汉字信息处理系统之间或通信系统之间进行信息交换的代码
