某建设项目计算期为10年，净现金流量见下表，基准益率为10%，则该项目的财务净现值为()万元。
A. 330.00
B. 88.56
C. 80.51
D. 189.47
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某项目现有甲、乙两个方案，各方案的费用分别为450万元、550万元，各方案的功能得分及重要度权数见下表，优选方案为()。
A. 由于V1甲=1.0493，V1乙=0.9596，V1甲＞V1乙所以，选择方案甲
B. 由于V1甲=1.0493，V1乙=0.9596，V1甲＞V1乙所以，选择方案乙
C. 由于V1甲=0.9530，V1乙=1.0420，V1甲＜V1乙所以，选择方案乙
D. 由于V1甲=0.9530，V1乙=1.0420，V1甲＜V1乙所以，选择方案甲
若A、B、C、D、E五名运动员进行乒乓球循环赛(即每两人赛一场)，比赛进行一段时间后，进行过的场次数与队员的对照统计表如下：
那么与E进行过比赛的运动员是()。
A和B
B和C
C. A和C
D. A和D
The author's main purpose in writing this passage is most probably to______.
A. complain about people's slow actions to protect the environment
B. advise people to take actions to protect the environment
C. show himself to be an active environment protector
D. point out the bad effects of technologies on protecting environment
In the third paragraph the author explains______.
A. what role the market system plays in producing public goods
B. how weak the market system is in producing public goods
C. why some people refuse to pay for public goods
D. what we can do not make use of the market system
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