WLAN不可以在下列哪种接入方式基础上实现（）。
A、ADSL
B、LAN
C、16300
D、光纤接入
参考答案：D
Since Tom ______ downloaded a virus into his computer, he
can not open the file now.
A．readily
B．horribly
C．accidentally
D．irregularly
色织与其他化纤混纺平纹棉布
