【单选题】电源的电动势为3V,内阻为0.3Ω,当外电路断路时,电路中的电流和端电压分别是:
【简答题】A.spread B.steady C.steal D.threaten
【判断题】釉下彩绘作品中温釉的烧成温度一般为1300度。
【判断题】维吾尔族古代音乐与歌舞艺术在西域文化中享有盛誉。
【判断题】Theists threaten people with hellfire and bribe them with promises of eternal bliss, while Asimov merely attempts to look at the universe in a rational way.