NO.PZ2018062001000041
问题如下：
Which is the theory proposed by R. N. Elliott in 1938?
选项：
A. Western economies have cycles every 54 years.
B. Equity markets move in cycles following Fibonacci ratios.
C. Decennial pattern exists in DJIA.
解释：
B is correct.
R. N. Elliott discovered that market waves follow patterns that are ratios of the numbers in Fibonacci sequence in 1938.
请问题干里面的djia是什么意思呀