I think she should ____ (see) a dentist and get an X-ray.
选择你所听到的单词( )
I know you have g____ up, and you want to make your own decisions.
一只标有“12V 6W”字样的电灯,当它正常工作时,通过灯丝的电流为____ A,灯丝电阻为____ Ω;若把它接在电压为15V的电路中,应给它____ 联一个阻值为____ Ω的电阻,电灯才能正常发光.