【单选题】At the bottom of the world lies a mighty continent still wrapped in the Ice Age and, until recent times, unknown to man. It is a great land mass crisscrossed by mountain(51) whose extent and elevation...
【简答题】The baby boy, born at two minutes past midnight Thursday in a Beijing hospital, counted China’s 1.3 billionth citizen and the date, January 6, 2005, became the 1.3 Billion Population Day of China. Wit...