自利而渴者,属太阴;自利不渴者,属少阴。
参考答案:错
For the common stock of a firm that reported a small loss for the year just ended, the price multiple that is least likely to be meaningful is:()
A. price to cash flow.
B. leading price to earnings.
C. trailing price to earnings.
机组大修后为什么进行油循环?油循环时为什么不开调速油泵?