Weibo "CCTV news" reported, 22, xi 'an temperatures plummet, after the road is slippery. A 70 - year - old old man to go out on the road down, the body trembling. Many passers-by stop, someone carries an umbrella for the old, someone hands pad in the old man body, someone take cotton-padded clothes cover in the elderly home, stay warm... Until 120, the old man was carried on. The old man is out of danger. (CCTV reporter Chen wu) market cooperation: 010-68...