On October 12, the world received its 6 billionth resident. China, with 1.248 billion residents at the beginning of 1999, and accounting for 21 percent of the total, relieved experts by delaying this...
Please login first!
On October 12, the world received its 6 billionth resident. China, with 1.248 billion residents at the beginning of 1999, and accounting for 21 percent of the total, relieved experts by delaying this...