某项目有四种方案，各方案的投资额、现金流量及有关评价指标如下表所示。若已知基准收益率ic=16%，则经比选最优方案为()。
各方案投资及有关数据表
A. 方案A
B. 方案B
C. 方案C
D. 方案D
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新时期社会主义改革的开端是（）
A. 农村家庭联产承包责任制
B. 乡镇企业的诞生
C. 城市企业承包制
D. 设立经济特区
统一战线内的社会主义联盟和爱国主义联盟的关系是（）
A. 前者是后者的主体和基础
B. 后者是前者的主体和基础
C. 从根本性质上说，前者是社会主义的，后者是非社会主义
D. 后者受前者的领导
A．Street dance was introduced into China in 1990.B．Street dance is more tiring than no
A. Street dance was introduced into China in 1990.
B. Street dance is more tiring than normal aerobics.
C. Street dance uses its music, its basic movements, and also its freedom for self-expression.
D. The music for street dance is not the dancing music that an aerobics class usually uses.
Unlike hot dogs, hamburgers are a favorite picnic food.
A. Y
B. N
C. NG
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