A student _________ from a tree and __________ his right leg.

A．fell; hurted

B．fell; hurt

C．falled; hurt

D．falled; hurted

投标文件中单价有明显的小数点错误，应当( )。

A．以单价为准

B．以总价为准

C．以其加权平均价为准

D．以废标论处