Which of the following statements about efficient markets and indexes is FALSE（）

A. An unweighted index assumes that investors make and maintain an equal dollar investment in each stock in the index.

B. External efficiency means prices adjust rapidly to new information.

C. Efficient markets tests have found that stocks with high price-to-earnings ratios (P/E) tend to outperform stocks with low P/E ratios.

船长（）米以上的油船，其油舱透气口的出口应布置在货油舱无露天甲板以上，其高度不小于6米。