Calcium is important forus.

• 作者: 高利平
• 来源期刊: 英语学习辅导：高考指导版
• 学科: 教育
• 关键词: 高中 英语 科普知识 阅读练习
• 年，卷（期）: 2005,（4）
• 页码范围: 35
• 页数: 1页
• 分类号: G633.41

摘要

Calcium is important for our health.We must have it in our diet to stay well.A good place to get it is from dairy products like milk, cheese and ice cream.One pound of cheese has fifty times the calcium we should have every day.Other foods have less.For example,a pound of beans also has calcium.But it has only three times the amount we ought to have daily.