不定项选择In Cockney English, θ and ð are often pronounced as f and v respectively.
单项选择题本实验测量冷热水的进 出口温度是采用以下哪种温度传感器? A、热电偶 B、PT100热电阻温度计 C、热敏电阻 D、玻璃管温度计