单选题 The story does not say this, but from what we have read, we can tell that ______. [A] fruit trees do not need help from insects [B] praying mantis always lives in a house [C] some people know nothing about insects

【正确答案】 C

【答案解析】[解析] 文中举了几种人们认为是害虫但实际是益虫的昆虫为例，可推断出一些人对昆虫的了解甚少。