← 百分比关系・求百分数 · 题库挑战

ONE QUESTION, ONE STEP

ZX-BB7B74EE10

2025年6月美国B卷 · 第 2 题

2025年6月美国B卷 · 原库模块 2 · Q2 原库参考解析

A scientist analyzed a soil sample with a mass of 900 grams and determined that it contained 189 grams of water. What is the percentage of water, by mass, in this soil sample?
选择答案