Lateral thinking: refers to a way of thinking that uses the knowledge and information in other fields to solve problems side by side. Which of the following is lateral thinking? ["When a doctor solved the problem of how to detect a person's pleural effusion, he thought of his own wine merchant's method of knocking a vat and selling wine, and invented a percussion.", 'Compared with similar products, a certain sauce has a higher concentration and thicker but has a poor market. The distribution company believes that the product is more nutritious and the taste is purer. No.1 in its class.', "When the workers' congress discusses the relevant clauses, people sometimes collectively silence for a long time, but then they are unanimously adopted.", "In the course of attacking the enemy's 101 positions in the first line, a hard bone battalion of the People's Liberation Army saw the enemy's frontal fire was very fierce."]