Twenty eight percent of the federal budget is spent on defense.28%的联邦预算用于国防。Twenty-eight is divisible by seven.28可以被7除尽。The last of the ten inmates gave themselves up after twenty eight hours on the roof of the prison.在监...
Tryptanthrin is a kind of indole quinazoline alkaloid.色胺酮属吲哚喹唑啉类生物碱.Indole is extracted from methylnaphthalene oil through solvent extracting.用溶剂萃取法从甲基萘油中萃取吲哚.The content of gibberellin ( GA ) and indole - 3 - acetic aci...