- 任务完成
- 8.0分
- 连贯与衔接
- 8.0分
- 词汇资源
- 8.0分
- 语法范围与准确性
- 8.0分
The diagram illustrates the development of the cutting tool from two different time periods within the Stone Age. Although the overall size and shape of the two cutting tools are very similar, the cutting tool from the latter time period shows some distinct improvements.