相关bead的文学知识

问题详情：已知：如图，△BCE、△ACD分别是以BE、AD为斜边的直角三角形，且BE=AD，△CDE是等边三角形．求*：△ABC是等边三角形．【回答】详解：∵△CDE是等边三角形，∴EC=CD，∠1=60°．∵BE、AD都是斜边，∴∠BCE=∠ACD=90°在Rt△BCE和Rt△A...

Hewentoutthroughthebeadcurtain.Sheaccidentallyswallowedaglassbead.Apaperclip(orlargeplasticbead).Thetoywouldonlytakethebeadpairhorizontally,butdespitethis,thechildrenheldthebeadpairverticallytotesteac...

Juehangadornjadebeadcentralgap.Thecrispcrashofraindropssplashed,andthenthesoundofjadebeadsshattered.Thetotalpopulationisjust330,000andthespectacularappearancefromabovehasbeenlikenedtoanecklaceofspeckl...