rugs.

  34.whatcanbeasuixt

  p

  b.fat,sugarandhealth

  d.h

  stheaxt

  a.bygivingexamples.

  ts.

  c.byexplainingstatisticaldata.

  d.byprovidingresearchresults.

  ******请/支/持/正/版，晋/江/文/学/城******