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【单选题】
在项目投资决策中，要求计算增量现金流量，体现的原则是A.
自利原则
B.
比较优势原则
C.
有价值的创意原则
D.
净增效益原则
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A.
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A.
flow-meter
B.
viscometer
C.
micrometer
D.
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【单选题】Purchasing computing power from a central computing service and paying only for the amount of computing power used is commonly referred to as:
A.
autonomic computing.
B.
utility computing.
C.
client/server computing
D.
grid computing.
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A.
real
B.
rixed
C.
actual
D.
virtualized
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【单选题】Any drug that combats the headaches is a great step forward.
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