NAIROBI, Aug. 1 (Xinhua) -- Kenya said on Friday that it has heightened security with the Group A matches of the CAF African Nations Championship (CHAN) 2024 set to start on Sunday in the co-hosting ...

Uganda lost 1-0 to Tanzania before defeating defending CHAN champions Senegal 2-1 in Karatu on Thursday. "We have been training for some time now and the two internationals put us in a good situation.

Chan–Lam C–X偶联反应在有机合成中与非常类似的 Suzuki–Miyaura’s C–C 交叉偶联反应 一样应用非常广泛。 实验技巧 一、由于催化循环需要氧气参与，因此该反应在惰性气体的保护下反应很难进行。