题目

Computer technology has become an 61.____(importance) part of people’s lives. This technology has 62.____ (it)own special words. One example is the word mouse. A computer mouse is not a small animal that lives in buildings and open fields 63.____ a small device which you move around on a flat surface in front of a computer. Computer expert Douglas Engelbart 64.____ (develop) the idea for the mouse in the early 1960s. The first computer mouse was a carved block of wood with two mental 65._____ (wheel) which could move freely. It was called a mouse because it had a tail at one end. The绿色植物细胞中与能量转换直接有关的一组细胞器是 [　　] A．线粒体和叶绿体B．核糖体和高尔基体 C．中心体和内质网D．高尔基体和叶绿体