[问答题]
You can tell whether a perz4 9lb -rf) 5k zgofv:b.y uqtd0/e(aoson is nearsighted oraiyln j9 e)0; s:o vs w9v8qyg:n3 ewz2q/oi+u farsighted by looking at the width ofs9+03 ei:wzyvenqouq ;nays)i 2ol/j8 : vwg9 the face through their glasses. If the person’s face appears narrower through the glasses (Fig. Below), is the person farsighted or nearsighted?
