判断题

付费推广方式比免费推广方式的效果好。
正确
错误

答案：错误

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多项选择题

工匠精神应该如何传承（）?

A.要有进取心
B.要有自信心
C.要有专注心
D.要有责任心

单项选择题

JCW company is appraising an opportunity to invest in some new machine that has the following cash flows.
Initial investment 12,000 per annum
Decommissioning costs after 5 years 100)?
A、negative 14,800
C、positive 11,275