  Final results of the measurement of $R = \sigma(e^+e^- \to hadrons)
/\sigma(e^+e^- \to \mu^+\mu^-)$ in the energy region from 2 to 5 GeV with the
upgraded Beijing Spectrometer (BESII) at the Beijing Electron Positron Collider
(BEPC) are presented. Preliminary results of the inclusive momentum spectra and
second binomial moment measured with the $R$ scan data at 2.2, 2.6, 3.0, 3.2,
4.6 and 4.8 GeV are reported.
