比较而言,目前在电力市场结构下竞争最不可能出现的问题是( )
A. 寡头勾结垄断电价
B. 过度竞争
C. 电价过度脆弱
D. 电力市场中的投资下降
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假设日前市场中有两台机组报价,它们的报价曲线分别是:第一台:50MW至100MW,报0.17千元/MW.h;100MW至150MW(不含100MW),报0.19千元/MW.h;150MW至200MW(不含150MW),报0.21千元/MW.h;200MW至250MW(不含200MW),报0.23千元/MW.h。第二台:100MW至150MW,报0.19千元/MW.h;150MW至200MW(不含150MW),报0.20千元/MW.h;200MW至250MW(不含200MW),报0.21千元/MW.h;250MW至300MW(不含250MW),报0.22千元/MW.h。当系统负荷为350MW,市场清算价格为( )
A. 0.19千元/MW.h
B. 0.20千元/MW.h
C. 0.22千元/MW.h
D. 0.23千元/MW.h
税式支出是对基准税制或法规的背离。()
A. 对
B. 错
1. It was clear that the boy was an artist and_________________the best training he could get.
A. delivered
B. depended
C. defended
D. deserved
A teacher cannot give____________attention to his students in a large class.
A. indirect
B. inevitable
C. initial
D. individual