橡皮筋也像弹簧一样，在弹性限度范围内，伸长量x与弹力F成正比，即F=kx，k的值与橡皮筋未受到拉力时的长度L、横截面积S有关，理论与实践都表明k= $\frac{YS}{L}$ ，其中Y是一个由材料本身性质决定的常数，材料力学上称之为杨氏模量．有一段横截面为圆形的橡皮筋，应用如图甲所示的实验装置，可以测量出它的杨氏模量Y的值．首先利用测量工具a测得橡皮筋的长度L=20.00cm，利用测量工具b测得橡皮筋未受到拉力时的直径D=4.000mm．

下表为橡皮筋受到的拉力F与伸长量x的实验记录，

中纪委监察部网站9日通报，云南省副省长沈培平涉 嫌严重违纪违法，目前正接受组织调查。沈培平是今年以来第4位被调查的省部级官员，也是十八大以来第22位被调查的省部级官员。几天前，中纪委对湖北省政协原副主席陈柏槐严重违纪违法问题进行了立案检查。接连落马的省级高官，让社会各界看到了中央“打老虎”的决心。（新华网 3月10日）
阅读上述材料回答：

把肯定句改成双重否定句

孩子们都喜欢他。

图1

请回答下列问题：

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：在错的词下画一横线，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。

    There are lots of experience in our life. The most unforgettable one for me is the speech competition holding last year. I'm interested in English. When my English teacher told me that I had chosen to take part in the speech competition, I devoted me to the preparation. I was determined to win the first prize. I was such nervous when I stood on the stage that I forgot everything. Not until I caught a sight of my teacher did I calm down. Finally, I do a good job. When I heard I got the first prize, my heart was filled in joy and tears rolled down. Through this speech competition, I understand that it is confidence which makes people succeeded.