【简答题】rift abuse justify intimate meander sty desultory facetious alchemy snobbery jeer sinister ultimatum edict pejorative They issued an ______ to the police to ri...
【单选题】They issued an ultimatum to the police to rid an area of racist attackers, or they will take the law into their own hands.Choose a word from A, B, C, and D, which can best replace the underlined word ...
【简答题】10g 理想气体氦在 127 °C 时压力为 5×10 5 Pa ,今在定温下外压恒定为 10 6 Pa 进行压缩。计算此过程的 Q , W ,△ U ,△ H ,△ S ,△ A ,△ G 。 2. 设有 300K 的 1mol 理想气体作定温膨胀,起始压力为 1.5×10 6 Pa ,终态体积为 10dm -3 。计算次过程的△ U ,△ H ,△ S ,△ A ,△ G 。