[填空题]
In an alcohol-in-glass thermometer, the alcohol colub fw7rbr0e*.:ge he po+q*kh0mn has r)( 3tw -db7o4sdnu*bi tv43v+m ytqelength 11.82 cm at 0.0 d b )un+m3soy r3-t7 veb*v 4qd4tw(ti$^{\circ} $ C and length 22.85 cm at 100.0 $^{\circ} $ C. What is the temperature if the column has length
(a) 16.70 cm, $^{\circ} $ C
(b) 20.50 cm? $^{\circ} $ C