—Oh,Mary!You should do your work instead of sitting here watching TV.

—__________

A．That’s not a very good idea.

B．TV produces good influence on children.

C．What makes you say that?

D．You said TV was educational.

存储单元是指( )。

A．存放一个二进制信息位的存储元
B．存放一个机器字的所有存储元集合
C．存放一个字节的所有存储元集合
D．存放两个字节的所有存储元集合