单词：number of Newton's rings
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EXPLORATIONS - Isaac Newton: One of History's Greatest Scientists By Marilyn Christiano and Frank Beardsley Broadcast: Wednesday, October 19, 2005 (MUSIC) VOICE ONE: This is Shirley Griffith. VOICE TW
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Tap, tap, tap. Jack was dreaming that a white bird was pecking athis window. Tap . . . tap. A red bird appeared and pecked with the whitebird. Tap ... tap. Jack, wake up! said Annie. Jack opened his eyes. They're here! said Annie. Who? The birds? sai
汪培珽儿童英文分级书单《神奇树屋》
By David McAlary The U.S. Cassini spacecraft orbiting Saturn has found evidence that the giant planet's dazzling rings are decaying and may eventually be gone. And the rings are dirtier than thought,
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Thanksgiving is a national holiday. It is celebrated once a year. Mark loved Thanksgiving. It is his favorite holiday. Every year, he cooks a turkey. Mark's wife helps him. Mark cooks other dishes, too. He makes stuffing, potato salad, and ham. Mark
英语第3级听力-English Level 3
Solving Today's Problems with Yesterday's Technology My wife told me that our daughter, now 10, would grow up to spend a lot of time on the phone. These days, when our home phone rings, the wife and I usually don't even bother to pick it up. Our girl
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Are you less than 170cm tall? Do you have hairy feet and toes? You do? Then there may be a job for you. Let me explain. You have probably heard of the writer JRR Tolkien. He wrote the Hobbit and Lord of the Rings, and a number of other books. His boo
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