题目

下列有关分子、原子、离子的叙述正确的是（） A . 物质都是由分子构成的 B . 原子的电子层的最外层不具有稳定结构，而离子的最外层都是稳定结构 C . 带电的原子或原子团叫离子 D . 原子核带正电荷，电子带负电荷，所以原子是带电的粒子 答案：C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：在缺词处加一个漏字符号（A )，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。Once, a man got on a bus to New York. Because he did not want to pay, so he hid in the toilet. But a passenger saw her. She tapped the person in front of her on the shoulder and say，“ There's a bum(流浪汉）in toilet. Tell the bus driver. ” The message was passing on from person to person. But somewhere along the way, it was changed. The bus driver told that there was a bomb in the toilet. He immediate stopped the bus and telephoned the police. When the police came, they told the passengers to get off the bus or stay far away. Then they closed the highway. As a result, a traffic jam of15 mile long was soon caused. In the help of a dog, the police searched for two hours. Of course they found no bomb.