下列实验操作中存在有不合理操作的是（）

①倾倒液体                  ②给液体加热                              ③检查装置气密性

                                                                                                 阅读岳飞的《论马》。
      骥①不称②其力，称其德也。臣有二马，故常奇之。日啖刍豆数斗，饮泉一斛③，然非精洁宁饿死不受，介胄④而驰，其初若不甚疾。比行百余里，始振鬣长鸣，奋迅示骏，自午至酉⑤，犹可二百里；褫⑥鞍甲而不息、不汗，若无事然。此其为马，受大而不苟取，力裕而不求逞，致远之材也。
     【注释】①骥（jì）：良马。  ②称：衡量。  ③斛（hú）：量器名，也是容量单位，十斗为一斛。  ④介胄：披上战甲。  ⑤酉：酉时，指傍晚。⑥褫（chǐ）：解除，解下。

阅读下面材料，在空白处填入适当的内容（1个单词，部分空格2个或者3个单词）或括号内单词的正确形式。将答案填写在答题纸相应位置。

    The British love sending text messages. They send more than 2.5 billion every month. And most people now understand the language of text, with its numbers and missing ____(letter), In fact, when a student at____Scottish school wrote the whole article “in txt”, his teacher give him “c+4 f4t” (“c + for effort”).

____texing is a cheap way of staying in touch with your friends, it can also bring problems. In 2005, a British teenager became ____ (one ) person in the world to receive treatment for an addiction(沉溺) to text messaging. In one year, the nineteen-year-old spent about £4,500

____texts.

    For some people, text messaging____(change) their lives already. For example, James Trusler from England travels around the world____(take) part in texting competitions and TV shows. He's the world's fastest texter and recently set a new world record while he was appearing on Australian TV. He texted: “The razor-toothed piranhas of the genera Serraslmus and Pygocentrus（脂鲤属和红肚属水虎鱼）are____(terrible) freshwater fish in the world. In reality they seldom attack a human. ” ____took him 67 seconds. James sends a lot of text messages-about 2,500 a month. But he doesn't get big bills____he works for a large mobile phone company!