CET4 阅读分析
1994-CET4-01-01
1994
年
1
月
Science & Nature
难度画像
阅读训练指标
词数
298
句数
18
平均句长
16.56
词汇难度
2.06
CET4 覆盖
95.6%
CET6 覆盖
0.0%
超纲词
4.4%
复杂句
52.9%
文章摘要
适合搜索和复盘的公开信息
1994-CET4-01-01 的 CET4 阅读分析摘要，主题为 Science & Nature，约 298 词，包含词汇覆盖率、复杂句比例、平均句长和备考精读信号。
分析自己的阅读文章Text Preview
原文短预览
Suppose we built a robot to explore the planet Mars. We provide the robot with seeing detectors to keep it away from danger. It is powered entirely by the sun. Should we program the robot to be equally active at all times? No. The robot would be using up energy at a time when it was not receiving any. So we would probably program it to cease its activity at night and to wake up at dawn the next morning. According to ...
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