题目

阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。Ten years ago, I set out toexamine luck. I wanted to know why some people are1 inthe right place at the right time, while others consistently experienced illfortune. I placed 2innational newspapers asking for people who felt consistently lucky or unlucky to3 me. Hundreds of extraordinary menand women volunteered for my research. Over the years I interviewed them,watched their lives and had them4variousexperiments. I carried out a simpleexperiment to discover whether their differences下列有关化学与生活的说法中，不正确的是（ ）A．冬天用煤火取暖时，要注意室内通风B．随意丢弃不可降解的废旧塑料，会造成“白色污染”C．甲醛水溶液浸泡的水产品，不宜食用D．氢氧化钠显碱性，可用于改良酸性土壤用