Recently, there is boom(繁荣)in population mobility and according to national population s

发布时间:2020-08-17 07:49:57

Recently, there is      boom(繁荣)in population mobility and according to      national population survey of 2004, 17 percent of the population move every year.
A. the; a
B. a; the
C. /; a
D. the;/

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A. the; a
(答案→)B. a; the
C. /; a
D. the;/
解析:考查冠词。第一空a boom泛指在人口流动方面的一次繁荣,故用不定冠词a;第二空the national population survey of 2004是特指的2004年的国家人口调查,故用定冠词the。句意:最近根据2004年国家人口调查,人口流动方面有一次繁荣,每年有17%的人口流动。故B正确。
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