【正确答案】 Starting with Wall Street, stock markets everywhere began to fall into chaos. Two weeks in a row, the key U. S. indexes dropped precipitously. Last Wednesday, the Dow Jones Average plunged 433 points and the tech-heavy NASDAQ index fell to its lowest level of the year. Then both markets rebounded spectacularly on Thursday and ended the week on a high note. As always, A-sia' s bourses rose and fell in tandem with the U. S. markets. Tokyo' s Nikkei Index went from 15,340 on Tuesday to 14,872 on Wednesday and back up to close Friday at 15,198.