语法与词汇 A television camera produces an image by converting _____receives into a series of bright and dark dots.
【正确答案】 C
【答案解析】句意：电视相机能够将其接收到的东西转化成一系列明暗点，然后输出图像。本题考查的是定语从句。convert后面是定语从句，定语从句缺少主语与宾语，主语是it，代指电视机，what是receive的宾语。