(B) combining fixed costs with variable costs

　　(C) strengthening both incentives and penalties

　　(D) rearranging the incentive structure

　　4. According to the passage, when Idaho Power is building plants and purchasing equipment, such fixed costs _______.

　　(A) will no longer be treated as the costs of electricity sales

　　(B) will partially be covered by state regulators

　　(C) are still to be recovered by the companies

　　(D) are paid from customers' electricity bills

　　5. All of the following are the reasons why electric utilities welcome decoupling EXCEPT ______.

　　(A) the rapidly rising cost of building power plants

　　(B) the uncertainty about future costs

　　(C) the community opposition to the building of coal-fired power plants

　　(D) the reservations consumer advocates have about energy-saving measures

　　參考答案：

　　1. D 2. C3. D 4. C 5. D