题目

Once upon a time, there was a king who was known for his justice(公平) and kindness. In his kingdom, no one was_________. His people ___________him and were proud of him.On day, the king decided___________a palace on the riverbank. He asks his minister(大臣) to start the work. After___________months, the palace was ready. But the minister___________a hut(棚屋)just a few steps away from the palace gate. “ What is this hut doing here?”the minister shouted ,and added,“and___________does it belong to?”“Sir, it belongs to an old woman. She has been living here___________a long time.小明同学利用A、B两物体、砝码、泡沫等器材探究“压力的作用效果与什么因素有关”的实验。如图所示。 （1）实验中小明是通过观察        来比较压力作用效果的。（2）比较甲、乙两图所示实验，能够得到的结论是        。（3）小华同学实验时将物体B沿竖直方向切成大小不同的两块，如图丁所示。他发现它们对泡沫的压力作用效果     （选填变大、不变、变小），由此他得出的结论是：压力作用效果与受力面积无关。你认为他在探究过程中存在的问题是        。