Which of following is not true of U.S. manufacturing?
A.The value of American manufactured goods is greater than that of any other country. B.Manufacturing accounts for 18% of the U.S. gross domestic product. C.Since the mid-1900's, the country's fastest-growing manufacturing areas have been in the Midwest and Northeast. D.Since the Mid-1900's, U.S. industries have turned increasingly to automation.正确答案C
