A．同时发生 B．导致；有助于
C．其他的 D．支持；有利于 E．从……中取得
F．即将成功；即将达到 G．基于……推断；外推 H．使……脱颖而出
I．在……的控制之下 J．加固 Social mobility of this sort has unquestionably worked in
favor of economic development, notably by permitting a better match
between the supply and demand of qualified personnel.