A report about 20 cities with the worst air quality in the world has got China talking this week.

What's interesting about it is that not a single polluted Chinese city appeared on the list according to the report, which is said to be based on WHO's urban air quality database covering 1600 cities across 91 countries.

It turned out that the database is real, but the ranking is not scientific or credible.

Did people believe the ranking at all?

Topic2 Diaosi Survey62% of the Chinese workers at the grassroots level regard themselves as Diaosi, or simply loser in English.

Earlier this week, Peking University publishes its first "survival" status report on China's "diaosi,", aiming to provide a comprehensive view on the living standards of this often-ignored subset of Chinese society.

First of all, what is Diaosi?

Topic3 What Makes Chinese People HappyThere was a book called that used to be very popular. Recently, Chinanews.com looks at the matter in a different angle. In an article called Why Chinese People Can be Happy So Easily, the writer lists some things that can cheer us Chinese up.

So what make you guys happy?

Topic4 What Men Want: 5 Types Of Women Men Want Based On ScienceMen and women often wonder what members of the opposite sex find attractive. Many "experts" would have women believe that catching the eye of a man is as simple as wearing skimpy articles of clothing or smelling a certain way.

Recent studies show that male attraction is more complex than a miniskirt and fancy perfume. For example, a color of woman's clothing could be more appealing than how much she wears.

Let' have a listen to the five types of women that catch a man's attention.