According to the Notice on Carrying out the Examination of "One Clinic in Lu Xian County" for Grade Three in Luzhou City in the 2022-2023 school year issued by the Education Bureau of Luzhou City, the candidates of the First Clinic in Lu Xian County of Luzhou City include all the candidates of arts, arts and sports in Grade Three in this city.
It should be noted that the specific scope of candidates may be slightly different according to the specific circumstances such as examination subjects and school districts. I suggest you consult official website of Luzhou Education Bureau or relevant educational institutions to obtain more accurate and comprehensive information.