【单选题】()不仅是党的根本组织原则,而且是党的根本组织纪律。
【单选题】Sleeping with the lights on is a waste. You'd better______all the lights are off before you go to bed. [ ]
【单选题】Catching _____ sight of their head teacher coming, the students fell into silence all of _____ sudden.
【单选题】When you leave, please turn off _____.
【判断题】挺柱在工作时,既有上下往复运动,又有旋转运动。
【单选题】Sleeping with the lights on is a waste. You had better _____ all the lights are off before you go to bed. [ ]
【判断题】()挺柱在工作时,既有上下往复运动,又有旋转运动。