Yahoo Finance provides false exchange rates, or my units conversion widget's currency portion is broken

Picture 1 shows the correct conversion between hour and minute
Picture 2 shows the exchange rates data provider - Yahoo Finance
Picture 3 and 4 shows the false exchange rate between US Dollars and Chinese Yuan (which should be 1USD = 6.XXX RMB)
Picture 5 shows the false exchange rate between USD and USD!
What the hell is going on?

This converter(or the data provided by some company) almost made me buy a Macbook Pro in Hong Kong. This converter(or the data) told me that a new aluminum Macbook Pro cost only $700(converted from Hong Kong dollars)!

This converter comes with leopard