【单选题】Our teacher often tells us _______ our own cloth bags when shopping.
【单选题】Our teacher often speaks____and clearly in the class. [ ]
【判断题】风扇在工作时,风吹向散热器,以利散热器散热。
【简答题】______是人们对于新事物或有趣现象的直接兴趣,是在感知中由于兴奋性增强形成的一种不太稳定的愉悦倾向,属于始发状态的低层次兴趣,是由事物的新异刺激而引起的好奇心。
【判断题】冷却风扇在工作时,风是向散热器方向吹的,以利散热。()
【判断题】风扇在工作时,风是向散热器吹的,以利散热器散热。()
【单选题】Our teacher often tells us good students.
【单选题】Our teacher often asks us _____ about questions in groups.
【单选题】Our teacher often tells us ____ the windows before we leave.