无数据计算应用题是指问题中没有给出明显的数据而又需经过计算才能予以回答的一种特殊的题型.此类题型极富思考性与挑战性,常常使学生望而生畏,不知从何处下手.下面就解答这类问题时需用的知识进行分析,供参考.一、函数知识应用型例1硫磺具有一定的杀菌效力,这种效力的大小取 The data-free computational application is a special type of question that does not give explicit data but must be calculated before it can be answered. Such type of questions are highly reflective and challenging, and often make the students intimidated. Where to start. The following answers to this kind of question need to use the knowledge to analyze, for reference. First, function knowledge Application Example 1 sulfur has a certain bactericidal effect, the size of this effect