The first diagram shows a spirometer, which is an apparatus used to measure changes in lung volume. The cover rises during exhalation and falls during inhalation, producing a trace on the rotating drum. The second diagram shows a typical trace from a spirometer.
Which would give the vital capacity?

X + Y
2 )
X – Y
3 )
X + Y + Z
4 )
X – Y + Z
تحلیل ویدئویی تست
تحلیل ویدئویی برای این تست ثبت نشده است!