Mei Li:
Which European country introduced the world's first diesel locomotive in 1912??
Shuai Zheng:
germany
Mei Li:
In which country does the Amazon River rise??
Shuai Zheng:
peru
Mei Li:
What is the name of the actor and singer who voiced the character 'Chef' in the animated series 'South Park' from 1997 to 2006??
Shuai Zheng:
isaac hayes