价格手段是电力需求侧管理中开拓能源市场、增强节能活力的最重要的手段
参考答案：错
________ from what you say, they ought to succeed.[ ]
A. Judging
B. Judged
C. To judge
D. Having judged
( )发出了程变更的权力，一般会在施工合同中明确约定，通常在发出变更通知前应征得业主批准。
A．设计方B．供货方C．施工方D．监理方
