The California Teacher Study found the greatest reduction in breast cancer of about______percent among the women that were exercising the most A.26B.40C.31D.14请帮忙给出正确答案和分析,谢谢!
Meryl Streep won her third Oscar by the role ofA.an elderly widower B.former British Prime Minister C.an African American maid D.a struggling silent-era movie star 请帮忙给出正确答案和分析,谢谢!