一直纠结英语专业八级的一个改错真题：

一直纠结英语专业八级的一个改错真题：
They quickly brought down the age at marriage
for both men and women and brought the birth rate to a twentieth century height __1__ after more than a hundred years of steady decline,producing the “baby boom.”
（将height改为high/peak）
height也有高峰的意思,为什么用在这里不可以?