" According to the passage, which of the following is NOT true?
The dog ran alone behind them when the team was riding downhill.
The dog had been straying on highway G318 before it met the team of cyclists .
During their journey, Zhang and his team climbed 10 mountains higher than 4,000 meters .
The micro blog "Go Go Xiao Sa "has attracted more than 37,000 followers in two weeks .