和定最值做题口诀简介：In the summary of information every seven days, these four types of information must be listed separately, each forming a large series. If there is an emergency, such as a sharp rise in food prices, Xiao Hanjun must report it immediately.
In the summary of information every seven days, these four types of information must be listed separately, each forming a large series. If there is an emergency, such as a sharp rise in food prices, Xiao Hanjun must report it immediately.
