单项选择题 RECLUSE: PRIVACY ::（）

单项选择题 Research has proven that unlike their sober ------- who slowed down after making a mistake to try to correct their actions, men who imbibe alcohol show no signs of such ------- behavior.（）

单项选择题 Though sometimes -------, all too often technology is seen as a ------- for the great economic, social, and political challenges facing the nation as it embarks on the path of modernization.（）