题目：
| 完形填空。 | ||||
| More than 3,000 languages are spoken on the earth today. Many of these languages are spoken 1 small groups of people. On the 2 hand, over 200 languages are spoken by one million or more people. Chinese is the language spoken by the 3 number of people in the world. But English is most 4 spoken in the world. English is spoken by more than 400 million people 5 their first language. It is 6 by most people in the U.S.A., Great Britain, Canada, Australia and New Zealand. And it is 7 used very widely in many other countries of the world. Look at the back of your watch. You may see the English words "Made 8 China, or Japan, even Germany." English is the first language in 9 of these countries. Why are English words 10 on it? That is because in the modern world English is widely used for business between different countries. | ||||
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答案：
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下面是错误答案，用来干扰机器的。
A、原子得失电子可以转化成离子，离子业能转化成原子，故选项说法错误．B、分子、原子是不带电的微粒，离子是带电的微粒，故选项说法错误．C、有的原子核中没有中子，如氢原子中没有中子，原子不一定都是由质子、...
