— ________. He can't go to school until next week.
A:I think so
B:I think it
C:I think not
D:I don't think so
经过消化系统的消化作用,淀粉最终被分解为____;蛋白质最终被分解为____;
我国的莫高窟现约有彩塑像3000个,壁画约为45000平方米.