Give a summary of the effectiveness criteria when selecting a fitness center. (3rd question-)

answer; monaxial;

answer apply a dressing and apply pressure,then get to the hospital;

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.

where are the choices