Cáo Kūn / céng yú / yī jiǔ èr sān nián / dāng xuǎn / Zhōng huá Mín guó / zǒng tǒng / dàn / tā / de / tǒng zhì / yì zhí / bǎo shòu / zhēng yì曹锟曾于1923年当选中华民国总统,但他的统治一直饱受争议。Cao Kun was elected president of the Republic of China in 1923, but his rule remained highly controversial.