黄河防汛群众队伍是怎样组成的？
参考答案：
以民兵为基础，党团员为骨干，吸收有防汛经验的老同志参加，组织各种专业队伍。
由于交流伺服电动机的转子制作的轻而细长，故其转动惯量较小，控制较灵活；又因转子电阻较大，机械特性很软，所以一旦控制绕组电压为零，电机处于单相运行时，就能很快的停止转动
Roger Margotta, the CFO of Brainchild, Inc., is considering several alternative methods of depreciation for long-term assets. With respect to double-declining method of depreciation, which of the following statements is the most accurate（）
A. Current ratio will increase over the life of the asset.
B. Asset turnover ratio will decrease over the life of the asset.
C. Return on Investment will increase over the life of the asset.
