子曰：“管仲相恒公，霸诸侯，一匡天下，民到于今受其赐。”孔子称赞管仲，是因为管仲辅佐齐恒公( )
①恢复了周礼 ②尊崇周王，会盟诸侯
③实行了“初税亩” ④北御夷狄，南制楚蛮
We can surely overcome these difficulties as long as we are________united.
B
