问题详情：
改错：(2019·天津高考)However, technology is also an application of scientific knowledge to solve a problem, touching lives in countless ways.
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【回答】
an→the application为抽象名词，此处特指“对科学知识的运用”，故application前应用定冠词the。
知识点：冠词
题型：短文改错