如图所示,将万用表的选择开关置于“欧姆档”,再将电表的两支表笔与负温度系数的热敏电阻(Rt的阻值随温度的升高而减小,随温度降低而增大)两端相连,这时表针恰好指在刻度盘的正中间.若往Rt上擦一些酒精,表针将向 (填“左”或“右”) 移动;若用吹风机将热风吹向电阻,表针将向 (填“左”或“右”)移动。_______ him without informing ahead gave him much surprise.
[ ]
A.To visit
B.Visiting
C.Visited
D.Visit