> Also note that no. 1 is Shanghai (why not "China", I wonder?) 1) Shanghai is a very developed part of China (along with Beijing, and a few other big cities).

> Also note that no. 1 is Shanghai (why not "China", I wonder?) 1) Shanghai is a very developed part of China (along with Beijing, and a few other big cities). 2) I'm pretty sure they rigged it. There's various ways the teachers could have rigged the test, and I doubt there was any effort by the local schooling system to keep them honest.