权威例句
New precursors for arylcarbenes. Photocycloelimination reactions of cyclic carbonatesA convenient thin layer chromatographic method for the detection of cyclochlorotine and simatoxin, toxins from Penicillium islandicu...Total synthesis of (.+-.)-3-deoxy-7,8-dihydromorphinonePhotofragmentation of cyclic carbonates and sulfites: A new route to diphenylmethylenePédagogie de l'espacea closer lookRandom House for High School Teachers | Catalog | Alvin Ho: Allergic to Birthday Parties, Science Projects, and Other Man-made Catas...Poster Presentations <<ManMadeSYSTEMS FOR LOCATING AND IDENTIFYING VICTIMS OF MANMADE OR NATURAL DISASTERS