题目

— Mom, can you give me an extra 200 yuan a month? — Son, we have just bought a house, and from now on we need to practice strict ______. A. economy                         B. medicine                         C. self-control                    D. patience 答案：A 解析: 略如图为动、植物细胞结构图，对其结构和功能叙述错误的是（ ）A. 甲、乙细胞都具有细胞膜、细胞质和细胞核B. 甲、乙细胞中都有与呼吸作用有关的线粒体C. 甲图中的①与细胞内外物质的进出有关D. 乙图中的②能将无机物合成有机物