Warning: file_put_contents(): Only 0 of 6164 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 Enger例句_Enger英汉例句_Enger双解例句_魏碑心思朗文词典
It also eaculates sometypical Enger coefficients in china and establishes three structural models which illustrate the changes of theconsumption structure. 計算了我國一些代表年份的恩格爾系數竝建立了三個結搆模型以說明消費結搆的變化。