Using a simple preposition:We introduce the method of data extra

Using a simple preposition:
We introduce the method of data extraction by means of an example.
【正确答案】：We introduce the method of data extraction with an example.
【题目解析】：With介词，“和……在一起；和；同；跟；用；使用；以”。By means of复合介词，“用；依靠；借助于”。