题干

下表是两种电子商务模式B2C (Business To Customer)和O2O(Online To Offline)的比较,从中可以看出(  )

B2C

O2O

企业通过互联网为消费者提供网上零售商店,消费者在网上购物,再通过物流公司把商品送到消费者手中。

在线上购买或购定商品、服务,再到线下消费,可使消费者获得比线下直接消费更便宜的价格。

①B2C满足了人们的从众心理 ②B2C较适合家居服装等消费 ③O2O改善了居民的消费结构 ④O2O较适合餐饮娱乐等消费

A:①③

B:①④

C:②③

D:②④

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D

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    If you want to live longer and lower the risk of heart disease, a move to the mountains may help. Research by scientists in Greece shows that living in the mountains is good for the heart and longevity(长寿). People living at higher altitude(海拔) have lower possibility of dying from heart disease than those closer to sea level, even if they have factors that could increase their risk. "Residence in mountainous areas seems to have a 'protective effect' from heart disease," said Dr Nikos Baibas of the University of Athens. He and his colleagues suspect that the increased exercise from walking up mountainous area gives the heart a good workout and enables it to cope with lower levels of oxygen.

    Researchers studied the health records and death rates of 1,150 Greeks who lived in three villages near Athens over 15 years. One village was 1,000 meters above sea level and the other two were in low-lying areas. Although men and women living in the mountainous village had higher blood pressure rates and other risk factors than people in the other villages, they had a lower rate of death from heart disease and other causes after a fifteen year follow-up." The contrast was more evident among men than among women," Baibas added in a report in the Journal of Epidemiology and Community Health. Heart disease is one of the world's top killers. Smoking, high blood pressure, raised cholesterol levels, being overweight and a family history of the illness increase the possibility of developing the disease.