GRE Reading Comprehension: ETS-GRE阅读ETS - 0F202283SUIV2H0S7

Which one of the following best states the function of the author's mention of "two immigration streams"? A. It demonstrates the effects of changes in human capital. B. It illustrates the operation of the primary labor market. C. It explains the nature of early Chinese and Japanese immigration. D. It characterizes the result of changing demand-side factors. E. It underscores an influence on the labor market.