可唔可以解釋下以下題目
2.Which of the following changes cannot improve the sensitivity of a liquid-in-glass thermometer？
以下哪個不能改變玻管液體溫度計的敏感度？
A.Using a longer capillary tube
用更長的管
B.Using a narrower capillary tube
用更窄的管
C.Using a bulb with a thinner wall
用更瘦溫度計的球部
D.Using a liquid that expands more when heated
用滴體可以擴大當佢燃燒既