ExercisesDownloads打开原始音频 / 视频 →B2 LISTENING TESTSQuestion 1 / 6请完成全部题目,最后查看答案与解析LISTENING · B2 ▶Listen and answerENAccording to the video, which of these facts is true about the US?A50% of US citizens won’t enjoy a retirement pension.BAround 30% of Americans haven’t saved anything for their retirement.C10% of retirees have to continue working after retirement.保存并进入下一题 →