A:x=12
B:x=18
C:y=12
D:y=18
“他对内整顿朝政,对外‘尊王攘夷’,终于九合诸侯,一匡天下,成就了春秋五霸之首的伟业。”这里的“他”是( )
—Sounds good, but I need to ______ before carrying it out.