Just 7.__________ the German famous poet Friedrich Nietzsche said, “8.__________ doesn't kill you makes you stronger”. Now, I have become a doctor treating the snakebite. So far, I have saved hundreds of people bitten by snakes.

　　Ⅲ.阅读理解

　　(原创)Dolphins are well known for their intelligence. But it turns out that they can also switch on other senses to figure out a problem, just like humans. A new study indicates that when one of their senses is blocked, they can make decisions to use other senses to imitate a human's movements.

　　In the first experiment, a bottlenose dolphin named Tanner was blindfolded and instructed to imitate the actions of a trainer in the water with him. When Tanner wasn't able to use sight to figure out the movement, he switched to another technique: send out sounds, listen to the echo and interpret the resulting sound waves. This ability — known as echolocation(回声定位法)— allowed Tanner to mimic movements by the trainer, such as spinning in the water.

　　The study, conducted at the Dolphin Research Center in the Florida Keys, expands on previous studies looking at how dolphins are able to imitate other dolphins while blindfolded. To see if a change in sound would affect their imitation, researchers used humans instead of dolphins to make the movements in the water.

　　Dr. Kelly Jaakkola said researchers were surprised by Tanner's use of echolocation. She explained that dolphins must decide when to use echolocation, “and that's problem­solving.”

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