【简答题】吹风机:家用电吹风机,主要用于头发的吹干
【单选题】同学们,相信你在这场考试前,已经多次告诉自己我能行,这种积极的心理调控方法是
【单选题】He can hardly stay awake, _________?
【单选题】He did his best to stay awake, but the performance was so boring that he just ______ to sleep.
【判断题】焊接缺陷是指焊缝内部缺陷不包括表面缺陷和热影晌区缺陷。
【判断题】北京故宫始建于1406年,历时18年才完工,为明清两代的皇宫。