英语语法分析

Hereditary breast cancer commonly occurs in premenopausal women.

遗传性乳癌通常发生于绝经前妇女。

This association was not observed among premenopausal African-American women.

而在绝经前的美国黑人妇女中未发现这一相关性。

Answer: False. Because iron accumulates in the blood, men need less than premenopausal women.

因为铁元素集中在血液中，男性的需求量要小于绝经期前的女性。