【单选题】The ________ helps design programs and systems to find new sources of knowledge or to make better use of existing knowledge in organizational and management processes.
【简答题】13-29 一定量的单原子分子理想气体,从初态 A 出发,沿图示直线过程变到另一状态 B , 又经过等容、等压两过程回到状态 A 。 ( 1 ) 求 A → B , B → C , C → A 各过程中系统对外所作的功 W ,内能的增量 E 以及所吸收的热量 Q 。 ( 2 ) 整个循环过程中系统对外所作的总功以及从外界吸收的总热量 ( 过程吸热的代数和 ) 。
【单选题】You will hear a talk aboutstaying safe on campus. Choose a, b or c. 48 48.mp3: 1. When can students ask a security officer to walk home with them?