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2008年高考,新课程卷进一步体现课改精神,如宁夏卷2008年高考理综卷第27题就是比较典型的一题,本文对此题做以点评。题目:为测试一铁片中铁元素的含量,某课外活动小组提出下面两种方案并进行了实验(以下数据为多次平行实验测定结果的平均值):方案一:将ag铁片完全溶解于过量稀硫
In the 2008 college entrance examination, the new curriculum will further reflect the spirit of the curriculum reform. For example, the 27th problem of the Ningxia University Volleyball Examination Paper 2008 is a typical one. This article will comment on this topic. Title: In order to test the iron content of a piece of iron, an extracurricular activity group proposed the following two options and conducted experiments (the following data are the average of the results of multiple parallel experiments): Option 1: Dissolve ag iron tablets completely. Excess dilute sulfur