题目

阅读理解 阅读下面一篇短文，判断下列句子是否符合短文内容，符合的用“T” 表示，不符合的用“F” 表示。    One day Mrs Perry went shopping. When her husband came home in the evening, she began to tell him about a beautiful cotton dress.“I saw it in a shop this morning，”she said,“and…”“And you want to buy it, ” said her husband.“How much does it cost?”“Twenty pounds. ”“Twenty pounds for a cotton dress? That is too much!”But every evening, when Mr Perry came back from work, his wife went on to speak only about the （2012?泰州三模）现有铜粉和镁粉的混合物样品，某兴趣小组要测定样品中镁的质量分数．他们称取该混合物样品10g置于烧杯中，然后加入350g溶质质量分数为7.3%的稀盐酸．所加稀盐酸的质量与产生氢气的质量关系如图所示．请计算：（1）原混合物样品中镁的质量分数是60%60%．（2）要将剩余的稀盐酸完全反应掉，还需加入该样品的质量是多少？（简要写出计算过程）