( ) is the source power of myopia prevention and control
A: Individual
B: Family
C: School
D: Society
A: Individual
B: Family
C: School
D: Society
举一反三
- Public Health is the prevention of disease and the promotion of physical, mental and _________ well-being on a _____________. A: social; nation-wide scale B: individual; community level C: mechanical; global part D: biological; school level
- epidemic prevention and control 四字
- egular epidemic prevention and control
- What has China done to control the epidemic?（ ） A: Reporting B: Hold conference C: Well-Coordinated Prevention and Control D: Treatment
- Which of the following is the correct signal flow for an analog multi-room audio system？（） A: Source，Volume Control，Speaker，Amp B: Source，Amp，Volume Control，Speaker C: Amp，Source，Volume Control，Speaker D: Speaker，Amp，Volume Control，Source