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【判断题】
进行坍落度试验时，可以不观察混凝土拌合物的粘聚性和保水性。A.
正确
B.
错误
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反馈参考答案：
举一反三
【多选题】风险投资对于高技术产业的发展的作用十分明显，主要表现在以下哪些方面（）。
A.
有助于高新技术企业的成长壮大
B.
有助于政府的参与与鼓励
C.
有助于促进服务业等其他非高科技产业的发展
D.
有助于优化资金配置的流动机制和使用效率
【单选题】For a given, permanent reduction in demand for a product:
A.
the decrease in price will be greater the more elastic is supply.
B.
the decrease in price will be greater in the long run than in the short run.
C.
the decrease in price will be greater the more inelastic is supply.
D.
none of the above
【单选题】For a given level of
A.
nominal GNP, changes in interest rates cause movements along the L(R,Y) schedule.
B.
real GNP, changes in interest rates cause a decrease of the L(R,Y) schedule.
C.
real GNP, changes in interest rates cause an increase of the L(R,Y) schedule.
D.
nominal GNP, changes in interest rates cause an increase in the L(R,Y) schedule.
E.
real GNP, changes in interest rates cause movements along the L(R,Y) schedule.
【单选题】For a given increase in price, a greater elasticity of demand will result in a greater
A.
increase in quantity demanded.
B.
increase in demand.
C.
decrease in quantity demanded.
D.
decrease in demand.
【多选题】对于投资者而言，期权交易有哪些作用()。
A.
期权购买者的风险是一定的
B.
期权购买者的风险是无穷大的
C.
期权可用于保值
D.
期权交易可用于投机
E.
期权交易的收益是确定的
【简答题】风险投资的外部环境具体包括哪些要素，它们各自有何作用?
【单选题】For a given Vr and I, the voltage regulation of the line increases with a decrease in power factor for:
A.
Leading Loads
B.
Unity PF loads only
C.
Lagging loads
D.
None of these
【单选题】For a given decrease in demand, the effect on price is smallest and the effect on quantity exchanged largest when:
A.
supply is perfectly elastic.
B.
supply is elastic.
C.
supply is unit elastic.
D.
supply is perfectly inelastic.
【单选题】For a given decrease in demand, the effect on price is largest and the effect on quantity exchanged smallest when:
A.
supply is perfectly elastic.
B.
supply is elastic.
C.
supply is unit elastic.
D.
supply is perfectly inelastic.
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