题目

（2011年湖北襄阳，52题）下图分别为稀释浓硫酸和过滤操作的实验装置图，请回答相关问题：  （1）图A中a应为        （填“浓硫酸”或“水”）。（2）图B中玻璃棒在实验中的作用是          。  答案：（1）浓硫酸（2）引流解析:略 假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。增加：在缺漏词的地方加一个漏字符号（∧），并在其下面写出该加的词。删除：把多余的词作斜线（\）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Today is Sunday. The sky is full of sunshine, so does my life. At about 9:00 a.m.，I go to the bookstore with my friends, there was a lot of new books，I didn't know which one to buy，because these books were all use to me. At last, I chose two. At 10:00，we went to the cinema, the film calling Titanic was very popular. It took us about 3 hours to see. Having seen the film, and everyone was deeply moved. Some friends even burst out tears. From the story, I understand that love is noble and valuable. That’s a really wonderful film. It is very worth seeing again.What a happy day! I hope tomorrow I will be even happy!