Alice, we are going to spend our holidays in Canada. But if you ________, we can go to China instead. A. hope B. wish C. prefer D. agree 答案:C1.一盏标有“6V 3W”字样的小灯泡,当小灯泡正常发光时的电阻是12Ω,若不考虑温度对电阻的影响,把它单独接入电压为3V的电路中,实际功率为0.75W;若接入电压值为12V的电路中,为使灯泡正常发光,则需串联一个阻值为12Ω的电阻.