发现待生套筒流化风和吹扫风中断时,正确的处理方法是()。
A、改就地手动进行操作,维持操作
B、改流化蒸汽吹扫,维持操作
C、切断进料
D、只要阀门控制正常,维持操作
参考答案:A
Which of the following statements about the discounted payback period is FALSE The discounted payback :()
A. period is generally shorter than the regular payback.
B. frequently ignores terminal values.
C. period is the time it takes for the present value of the project cash inflows to equal the cost of the investment.
思辨研究可以在以下()等方面发挥重要的作用。
A.行为
B.习惯
C.思考方式
D.人生意义