癌症最怕发现得太晚。许多癌症在早期并没有明显症状，等到身体出现明显不适时，病情往往已经进展到了难以控制的阶段。然而，一项来自美国约翰霍普金斯大学的研究带来了令人振奋的消息：通过血液检测，我们或许能在确诊癌症的三年前就捕捉到它的蛛丝马迹。

In the capital, Yaounde, Wilmosolar prides itself as one of Cameroon's biggest solar engineering firms. The company imports two to four containers of solar products a year from China, said Arnaud Igor ...

KATHMANDU, June 19 (Xinhua) -- Nepal's information technology (IT) firms can now invest abroad for the first time as the central bank has fixed the maximum amount for overseas investments.