根据图片提示写答句。
A father in the UK has a wonderful idea to send his kids to school on time. He takes his sons to school in a white tank(坦克).
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废墟
挖掘
破烂不堪
疾病
砸碎
洛杉矶市
如图所示,在探究“一段电路中的电流与电阻关系”的实验中,当A、B两点间的电阻由5Ω更换为10Ω后,为了探究探究上述问题,应该采取的唯一操作是()