Consider the following two projects:
Alpha -79 20 25 30 35 40 N/A N/A 15%
Beta -80 25 25 25 25 25 25 25 15%
Project
Year 0
C/F
Year 1
C/F
Year 2
C/F
Year 3
C/F
Year 4
C/F
Year 5
C/F
Year 6
C/F
Year 7
C/F
Discount
Rate|
Alpha
-79
20
25
30
35
40
N/A
N/A
15%|
Beta
-80
25
25
25
25
25
25
25
15%|
Which of the following statements is correct if both are mutually exclusive?
A． You should invest in project Beta since EAABeta > EAAAlpha.
B．You should invest in project Beta since NPVBeta > NPVAlpha.
C．You should invest in project Alpha since IRRAlpha > IRRBeta.
D．Your should invest in project Alpha since NPVAlpha < 0.
表示弦的总能量，对于两端固定的弦在没有外力作用的情况下，弦的总能量应该是 [填空1] （守恒，不守恒）的。
