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【单选题】
某通信2003项目年初投入资金150万元，2004年初双双100投入万元，项目计算期15年（包括建设期），计划2005年初投放运营，通读在2005年底可获得年收入80万元，当年生产经营费用为30万元，若在以后各年中年收入与年经营费用保持不变，项目终结时无残值。取折现率为5%，经计算，项目在计算期内累计净现金流量为400万元，累计净现金流量现值为181万元。 该项目的净现值率为（）。
A.
0．45
B.
0．61
C.
0．72
D.
0．74
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