【单选题】当温度为 20C 时,二极管的导通电压为 0.7V ,若其他参数不变,当温度升高到 40C 时,二极管的导通电压将( )
【单选题】— How did you like the lecture tonight? — Very__________.I doubt if I will come to this kind of lecture next time. [ ]
【单选题】夜间行车中,如果灯光照射(),有可能是车辆前方出现急转弯或大坑。
【单选题】I was really busy these days, otherwise I _______ to your birthday party last night.
【单选题】— Did you usually come to school by bike? — _____. But I sometimes walked. [ ]
【单选题】虚拟语气 I did not see your sister at the meeting. If she ____, she would have met my brother A. has come B. did come C. come D. had come
【单选题】当温度为 20摄氏度时,二极管的导通电压为0.7V ,若其他参数不变,当温度升高到40摄氏度时,二极管的 导通电压将( )。
【判断题】电力线路一般可分为输电线路和配电线路。()