在图所示的电路中，两个灵敏电流表G₁和G₂的零点都在刻度盘中央，当电流从“+”接线柱流入时，指针向右摆；电流从“﹣”接线柱流入时，指针向左摆．在电路接通稳定工作后再断开的瞬间，下面哪个说法符合实际（   ）

①把天平放在水平桌面上，指针指在分度盘的中线处，如图1所示，于是小丽同学就使用天平进行测量．此时，同组同学马上提醒说：测量之前应把游码向左移到标尺____．

②小丽接受了意见，进行相应调节，结果又发现天平横量不平衡，此时应向____（选填：左，右）端调节平衡螺母，使指针指到分度盘中线处．

③用调节好的天平测量瓷片的质量，所用砝码的个数和游码的位置如图2所示，则瓷片的质量是____g．

④他大小瓷片方步进量筒，于是改用如图3所示的方法侧瓷片的体积：

a．往烧杯中加入适量的水，把瓷片浸没，在水面到达的位置上作标记，然后取出瓷片．

b．先往量筒装入40ml的水，然后将量筒的水缓慢倒入烧杯中，让水面到达标记处，量筒里剩余水的体积如图所示，则瓷片的体积为____cm³．

⑤现在可以用密度公式计算出瓷片的密度ρ=____．根据以上步骤，你认为小李同学测出的瓷片密度值____（选填：偏大、偏小）．

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。

    Last summer, to my delight, I got a chance to go to the United Kingdom. I was eager to see how England was like. Although my parents objected to my decision at first, but finally they were persuaded. It was the first time that I have travelled abroad alone. Felt excited, I boarded the plane. Suddenly, however, I found my luggages gone and felt helplessly. It was on that moment that the airhostess came to my assistance. After helping me find it back, she suggested that I attached a label to my suitcase on my next journey. I was thankful to the kind lady for his help! What unforgettable trip!