Washing machines made by China have won        worldwide attention and Haier has become         popular name.

A．a; the

B．/; a

C．/; the

D．the; a

下列说法中，正确的是______。

A．IEEE 802.7标准定义了宽带技术

B．IEEE 802.8标准定义了光纤技术

C．IEEE 802.11标准定义了无线局域网技术

D．以上说法都正确