Why is the iris a special part of the eye ()? 材料
Everyone knows what a bank is. But do you know that there is an “eye bank” in China?
The “eye bank” is a database of iris(虹膜) information of Chinese children. Zhaobao Technology Co., Ltd.started it to help the police identify children.
The iris is a part of the eye. It is very special because people have different irises. We all know that no two people have the same fingerprints(指纹). Although people have different fingerprints, irises work better than fingerprints, because (they) won’t change much as long as you are older than 18 months old.That sounds pretty cool, right? So this is your special ID card.And that’s why iris information can be useful in identifying lost children and helping people to find them.Now there is over 93,000 Chinese children’s iris information in the database. Zhanbao Technology Co., Ltd.says writing iris information onto the eye bank only takes a few seconds and will not bring any harm to children. But still, the company is now facing a few problems, because some parents worry that their children’s information can be in danger, and this will bring some harm to their family.
单选题

Why is the iris a special part of the eye ()?

A. Because people have different irises.
B. Because no two people have the same fingerprints.
C. Because the iris is important to people.
D. Because the iris can help find lost children.

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