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图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh
Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in
bead, [bi:d] n 珠子,水珠,准星 【例】She wore a string of beads 她挂了一串珠子。 有孔小珠; 念珠 水珠; 水泡 算盘; (枪的)准星 【建】凸圆线脚, 串珠线脚 【机】卷边; 车轮圆缘 焊珠, 焊蚕, 焊缝; 叠
This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of
VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Barbara Klein. Beadwork has a long history as an art form practiced by American Indians and other cultures around the world. Today millions of people e
US Bead Parties Boost Ugandan Women Its party time for Madison Blandford and three dozen of her girlfriends. The 11-year-old invited her classmates and neighbors to see - and buy - beaded jewelry made by women in Uganda. My grandma got me a bracelet,