题目：
For periods beginning on or after l January 2011, the Global Investment Performance Standards (
) require that total firm assets be defined as the aggregate fair value of all:（）
A. discretionary assets in fee-paying portfolios managed by the firm.
B. discretionary and non-discretionary assets in fee-paying portfolios managed by the firm.
C. discretionary and non-discretionary assets in fee-paying and non-fee-paying portfolios managed by the firm.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：原因为：1.质量不合格，未紧牢；2.受热后槽楔的间隙增大；3.垫条的厚度不够；4.定、转子扫膛；5.定子振动大。处理方法为：1.更换合适槽楔后，加垫条打紧，必要时涂环氧树脂固定；2.把磁性槽楔更换为环...
