时域仿真方法进行电力系统暂态稳定计算、动态稳定计算以及暂态电压稳定计算分析时,建议凸极发电机采用()阶次暂态电势变化模型。
A.2
B.3
C.5
D.6
参考答案:C
零售包装供冲洗照相胶卷用显影剂()
— Does Linda have a pet?
— _________[ ]
A. She have a dog.
B. No, she isn't.
C. Yes, she has a cat.
D. She has a dog.