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25.进气温度传感器的电阻在温度上升时值会( )。A.升高B.降低C.不变D.变化不定26.单芯光缆的结构是:在折射率较高的纤芯外部用折射率较低的包层包住,再在包层的外面加上一层保护套。纤芯(光纤)是一种直径为( )μm柔软的传导光波的介质,一般由玻璃纤维和塑料构成。A.50～100 B.1～20 C.20～50 D.100～200 27.CAN的直接通信距离最远可达10 km(速率5 kb/s以下),通信速率最高可达( )Mb/s(此时通信距离最长为40m)。
25. The resistance of the intake air temperature sensor will rise () when the temperature rises. A. Increase B. Reduce C. Unchanged D. Variability 26. The single-core cable structure is: outside the core with a higher refractive index surrounded by a cladding with a lower refractive index, and then outside the cladding Plus a layer of protective cover. Fiber core (fiber) is a diameter () μm soft conductive light wave medium, usually composed of glass fiber and plastic. A.50 ~ 100 B.1 ~ 20 C.20 ~ 50 D.100 ~ 200 27.CAN direct communication distance up to 10 km (rate 5 kb / s below), the communication rate up to () Mb / s (communication distance up to 40m).