Production本题询问彼得.约翰逊的职位。根据文章第二、三句话"My name is Peter Johnson．I’m the Production Manager"可知他是生产部门经理。

Ladies and gentlemen，
    Welcome to the company．My name is Peter Johnson． I’m the Production Manager. I will be showing you around today．It should take about 20 minutes to see the factory and another 10 minutes to take a look at the laboratory．Altogether，our tour should last about half an hour．During the tour，please feel free to ask questions．I will be happy to answer them．Now，please wear these protective hard hats and safety glasses, because we must care about your safety and we want to ensure that there are no injuries．I must also tell you that smoking is not allowed during the tour．Well，if you don’t have any questions，shall we get started? First，I’ll take you to the factory．This way，please．