<p>To solve the question regarding the lac operon, we need to evaluate each of the four statements provided and determine which two are correct. </p><p>1. <strong>Understanding the Lac Operon</strong>: The lac operon is a segment of DNA that contains
①热播剧《长安十二时辰》里的美食再一次刷屏：一顿令人垂涎欲滴的宫宴引发热议，还有烹羊、火晶柿子、胡麻饼···令许多吃货差点忘记了紧张的剧情，直呼“长安吃播”开始了。有许多人感叹剧组的用心，实际上，在很久以前的唐代，饮食原本就是如此丰富。 ②在《长安十二时辰》美食圈站C位的应该是水盆羊肉，唐代...