单项选择题 PX Co is considering making a takeover bid for JJ Co. Both companies are large listed sportswear retailers that sell to the general public. The shares of both PX Co and JJ Co are regularly traded and their share prices react quickly to new information. Which of the following is likely to be needed to allow PX Co to make sure that its bid is not too high? A. No information is needed because the stock market is semi-strong form efficient  B. Estimates of the present value of the synergies that are likely to result from the takeover  C. An aged accounts receivable summary  D. The latest published statement of JJ Co's financial position

判断题 在波的传播过程中，参与波动的质点沿着介质由近及远的向前传播。

单项选择题 （　）是指个体因为自己在人格、能力、外貌等方面的缺憾，或者在思想和行为方面与社会常态不一致，而产生的一种痛苦的情绪体验。A、焦虑B、嫉妒C、恐惧D、羞耻