人口的增长应于 ， 相协调，与社会经济发展相适应。
资源 环境
题目分析：
人口增长必须与资源．环境相协调，与社会经济发展相适应；
A car can cost _______ 50,000 yuan and _______ 300,000 yuan in China.[ ]
A. as little as; as many as
B. as little as; as much as
C. as many as; as much as
D. as more as; as few as
胸导管经哪一个膈裂孔进入胸腔（）。
A.下腔静脉孔
B.主动脉裂孔
C.胸腹裂孔
D.食管裂孔
E.胸导管裂孔
