politics2024-04-30 02:31:31569Super Tuesday: What is it and why is it so important? By Jude SheerinRepublican front-runner Donald Trump will be trying to knock his last remaining rival Nikki Haley out of the race while Democrat President Joe Biden is all but certain to seal his party's nomination. Photo: AFPpoliticsPrevious:CDC says it's identified 1st documented cases of HIV transmitted through cosmetic needlesNext:Concert marks Chinese Language Day in GenevaRelated articles、 China renews blue alert for sandstorms10th National Constitution Day Marked in ChinaHeating Services Against Strong Cold Wave That Sweeps Across Most Parts of ChinaChina Launches National Advisory Committee for Students' Mental Health