Scientists from the University of Southampton's School of Biological Sciences examine lettuces at a farm near Winchester to determine the best time for picking. They are camping out and harvesting lettuces every four hours.
请先注册再继续
为何要注册？
- 注册是免费的，而且十分便捷
- 注册成功后，您每月可免费阅读3篇文章
- 订阅我们的邮件
已经注册或者是已订阅？
Please or to read this article.