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Betty kept silent at first _______ soon she joined the other girls, chatting and laughing.

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Einstein died in 1955. He was one of the greatest men in the world. His idea lived on in the work of scientists. After Einstein died, his brain was removed (Òƶ¯) by Dr Thomas Harvey, a hospital surgeon (Íâ¿ÆÒ½Éú) in charge£¨¹ÜÀí£©of examining the scientist's body . He decided to examine his brain .But Einstein's family didn't agree.

Strangely, Dr Harvey disappeared (Ïûʧ) soon afterwards, taking the brain with him. No one knew where he had gone. People tried to find him over 20 years. At last, the brain was examined by scientists. It was found that the brain was slightly smaller than normal (±ê×¼) ,but up to 15% wider and with few creases (ÖåÕÛ) .It maybe make Einstein famous in the world.

1.What's the meaning of ¡®slightly¡¯ in the article?

A. a little B. a few C. much D. even

2._________ found the mystery (ÃØÃÜ)of Einstein's brain.

A. Dr Harvey B. Scientists C. His family D. A hospital surgeon

3.What differences are there between Einstein's brain and others'?

A. smaller, wider and with few creases B. bigger, wider and with few creases

C. smaller and with more creases D. bigger and wider

4.__________ made Einstein very famous in the world?

A. Scientists B. His work C. His interests D. His special brain

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