Knowledge can be divided into explicit knowledge and tacit knowledge according to whether knowledge can be clearly expressed and effectively transferred. Explicit knowledge is knowledge that can be fully expressed by human beings in a certain symbol system (most typically language, also. Includes teaching formulas, various kinds of charts, braille, sign language, flag language and so on) . Tacit knowledge refers to the subjective knowledge which can not be easily expressed in the form of words, languages, images, etc. . It exists in the form of individual, team, organizational experience, impression, technical know-how, organizational culture, customs, etc.
Based on the above definition, which of the following is explicit knowledge?
Xiaoshi is studying to cook in a chef's class. The teacher repeatedly stressed that the fire, he tried to pay attention after the fried lai is still not good enough.