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—The airline has a bad safety . Its aircrafts often crash.

—It’s unbelievable. So we’d better think twice.

A.ground B.achievement C.memory D.record

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Science and technology makes our life easier and better than before. For example, a pair of shoes that helps you run faster and jumps higher, a cup that keeps your drink warm all the time, or a cute robot that talks to you, just like a human. The iPhone X is a “dream come true”, according to Apple. It does have some eye-catching selling points. The biggest selling point is Face ID. It can help users unlock their phone and pay for things just by looking at their smart phones.

According to Apple, Face ID has to do with a camera system(系统) called TrueDepth. When the camera system sees a person’s face, it “maps” the face with 30,000 invisible dots (看不见的点). Then the system creates and saves (保存)the model of the face in the phone.

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Apple says that the system is smart. So if you change your hairstyle, put on sunglasses, or use the phone in the dark, then it will still work.

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Apple also says that Face ID only unlocks when you look at it. So if you are sleeping or just taking a look at the phone very quickly, then it won’t unlock.

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_________________________________________________

2.What is the biggest selling point of the iPhone X?

_________________________________________________

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_________________________________________________

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“You needn’t look for it,” said Della. “It’s sold, I tell you - sold and gone, too. It’s Christmas Eve, boy. It’s time for gifts. Be good to me, for it went for you. Maybe the hairs of my head were numbered,” she went on with a sudden serious sweetness, “but nobody could ever count my love for you.”

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B.To number the hairs of her head.

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Why is that many teenagers have energy to play computer games until late at night, but can't find the energy to get out of bed in time for school? According to a new report, today's teenagers are getting so little sleep but their health is in danger.

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