PMDTA, formally N,N,N′,N′,N′′-pentamethyldiethylenetriamine, is an organic compound with the formula [Me2NCH2CH2]2中国同学录5460NMe (Me is CH3). PMDTA is a basic, bulky, and flexible, tridentate ligand tha
Unit 5 Text comprehensionI. Decide which of the following best states the author’s purpose of writing.保安服务条例C. II. Judge. according to the text, whether the following statements are true or false.违反社会
Structural Topic Model for Latent Topical Structure Analysis Hongning Wang,Duo Zhang,ChengXiang ZhaiDepartment of Computer ScienceUniversity of Illinois at Urbana-ChampaignUrbana IL,61801USA{wang296,d