问题
选择题
某地区的人口出生率为3%，人口死亡率为3.5%，则该地区的人口自然增长率为（ ）
A．2%
B．6.5%
C．-0.5%
D．0.5%
答案
因为某地区的人口出生率为3%，人口死亡率为3.5%，
人口自然增长率=出生率-死亡率=3%-3.5%=-0.5%．
故选：C．
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某地区的人口出生率为3%，人口死亡率为3.5%，则该地区的人口自然增长率为（ ）
A．2%
B．6.5%
C．-0.5%
D．0.5%
因为某地区的人口出生率为3%，人口死亡率为3.5%，
人口自然增长率=出生率-死亡率=3%-3.5%=-0.5%．
故选：C．
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all the time. Listening to the 3 , watching television, and attending movies are good 4 to improve your listening skill. You can develop your speaking skill by 5 to native speakers of English whenever possible and by speaking aloud to 6 when you are alone. Reading and writing also require a lot of 7 . You can improve your reading skills by reading English language 8 and magazines. Writing to 9 in English and keeping a diary are good ways to practice writing. Hope you have a good time 10 your stay here for the course, thank you. |