大一上期中scratch作業

https://docs.google.com/leaf?id=0BxDdyL4HJD4xZDBmYmNiNWQtODNiYS00YTlkLTkyNzctOTBjYWM1ZTlmMzhi
https://docs.google.com/leaf?id=0BxDdyL4HJD4xMDY4NmRhYWItMmUyNC00MjBhLWE3YjktNGYzY2JhYmM5ZjQ3
https://docs.google.com/leaf?id=0BxDdyL4HJD4xN2JjNzIwZmQtZDZlMC00YmE1LWI0MDEtNTIxMDEyNjQyZTJh
https://docs.google.com/leaf?id=0BxDdyL4HJD4xNjg2YzkwZmItOThjMi00MjA1LWE3N2QtY2MxOTE4OWUxYmVm
https://docs.google.com/leaf?id=0BxDdyL4HJD4xM2E2ZGU1NDAtODExZC00NTk3LTk4NDgtZmI0YzEyNmNkYzlm
https://docs.google.com/leaf?id=0BxDdyL4HJD4xOGNiM2ViYzEtYWE0OS00NjA2LWJiOGItNTA5MWIzYmZmN2E5