is very important to social scientists, public health and health care experts, policy analysts, and policy-makers; because it illustrates population trends like rates of births and deaths. The pyramid of age is also important because the data helps to predict the population growth in the future....
[translate] a写下这一行字的时候,跳动的世界人口钟提示我,地球上又增加了2个人。 Writes down this line of characters time, the beat world population clock prompts me, on the Earth increased 2 individual.[translate]
B: The meeting will begin in Room 603 at two o'clock next Friday afternoon . A: How long will is it last? B: For about an hour. A: Who will chair the meeting? B: The manager of our company. 4 Talking about Pollution 提示:假如有人问你有关污染的问题,你告诉他,污染有空气污染,水...
A: When and where will the meeting be held? B: The meeting will begin in Room 603 at two o'clock next Friday afternoon . A: How long will is it last? B: For about an hour. A: Who will chair the meeting? B: The manager of our company. 4 Talking about Pollution 提示:假如有人...
A: When and where will the meeting be held? B: The meeting will begin in Room 603 at two o'clock next Friday afternoon . A: How long will is it last? B: For about an hour. A: Who will chair the meeting? B: The manager of our company. 4 Talking about Pollution 提示:假如有人...