科研之友
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摘要
<正>Zero(0) is a special digit in the language of English, and it is a very important digit in our daily life. Look at your smartphone. There must be a digit "0" on the number board of your smartphone.Also, you’ll find that the digit "0" can be seen on many of the license plates of the cars, trucks, buses, jeeps, motorcycles and lorries,if you pay attention to them.
