若2m-4与3m-1是同一个数两个不同的平方根，则m的值（　　）

A．-3

B．1

C．-3或1

D．-1

"We will learn        English words this year," the teacher said to the students.

A．one thousand three hundred and twenty-one

B．a thousand and three hundred twenty-one

C．one thousand three hundred twenty-one

D．a thousand three hundreds and twenty-one