题目

My friend Jim was a well-known radio host, who worked at a radio station all his life. All his colleagues knew him about one characteristic: If he’s on-air, he is always wearing a suit and a tie. They laughed at him, saying, “No one ever sees you. Why do you dress like that?” But he always turned that into a joke. One day Jim was invited to appear on the TV. There was a show for the oldest radio employees. For the first time his fans, who only knew Jim by his voice, would see him. Before the recording of the show, the director came to Jim and asked, “Usually you arrive on time, 下图是被子植物细胞的两种生理过程示意图，其中表述错误的是（ ）A. ①是叶绿体，②是线粒体B. a是二氧化碳，b是有机物C. 1只在有叶绿体的细胞进行，2活细胞都能进行D. 1只在白天进行，2只在晚上进行