There are two questions in the recruitment examination paper of physical education teachers in Jiangxi Province for experts' guidance.

First choice A. The newly revised "National Students' Physical Health Standard" is applicable to students in full-time ordinary primary schools, junior high schools, ordinary high schools, secondary vocational schools and ordinary colleges and universities. Students are divided into different groups according to their grades. Height and weight in the body shape category, vital capacity in the body function category, 50-meter running and sitting forward in the body quality category are the * * * indicators of students of all grades.

The second choice is B. The mirror demonstration is with your back to you, but what you see is the same as you.