常压、2300℃下在管式反应器中进行纯度为90%的甲烷高温热裂解反应 其速率方程为 其速率常数为 k 1 =4.5×10 13 exp(-45800/T) (s -1 ) k 2 =2.6×10 8 exp(-20100/T) (s -1 ) k 3 =1.7×10 6 exp(-15100/T) (s -1 )
【简答题】Read Text A again and complete the following table. Part Topic Paragraph Supporting Details I Misunderstandings may occur among native English speakers. 1 A passenger wanted to tell the driver 1 . 2 T...
【简答题】Listen again and complete the chart. Definition of small talk: A casual form of conversation Common small talk subjects: Sports, 1 , 2 , 3 , hometown, entertainment, 4 or 5 , etc. Who makes small talk...
【简答题】B Choose the best words to complete the following sentences. Change their forms if necessary. 1. accident / incident / / happenings (1) After the , the injured were taken to hospital. (2) Fronti...