1. Problem-4 nalysis-- Solution(向题解决法 Back Problem: ?(Para. 1) Now a new study by a team of purdue University researchers suggests that even moderate exercise may lead to reduced iron in the blood of women.(Para. 1) >>>moreProblem: ? (Para. 1) >>>more Now a new study by a team of Purdue University researchers suggests that even moderate exercise may lead to reduced iron in the blood of women. (Para. 1) Back 1. Problem-Analysis-Solution (问题解决法)