在植物的生长过程中，需要施用量最多的无机盐是（    ）

如下图所示，其中甲图说明了力可以改变物体的____；乙图表示利用____使锤头套紧；丙图中B管的水位比A、C两管低，说明液体流速越大的位置压强____。

增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。

删除：把多余的词用斜线(\)划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1．每处错误及其修改均仅限一词； 2．只允许修改10处，多者(从第11处起)不计分。

    During last summer holiday, I found part-time job, worked in a toothbrush factory at night. Not until I experienced it, did I realized that it was no easy job. I went to work when my parents were going to bed. On the morning, when my parents were going to work, I came to home to sleep. This backward schedule was very tough for me that I often felt tiring. But I am glad that I had this forgettable experience. Not only was it kind of fun to “rise and shine” along with the moon or stars, but I also learned to appreciate the hard work of those which are working while the rest of us are sleeping.