Several wiring layouts are in use, because the null modem connection is not covered by a standard.
有多种连接方式可供选择，因为标准中并未涵盖零调制解调器连接。
And speaking of options, Virgin also offers a standard U. s. B. plug-in cellular modem with exactly the same pricing details.
谈到选择，维珍也提供一种标准的USB接口无线Modem，其定价细节也完全一样。
And speaking of options, Virgin also offers a standard U.S.B. plug-in cellular modem with exactly the same pricing details.
谈到选择，维珍也提供一种标准的USB接口无线Modem，其定价细节也完全一样。
The modem standard for evaluation of teaching should be created, with the teaching concept being changed.
建立现代教学评价标准，转变教学观念；
The modem standard for evaluation of teaching should be created, with the teaching concept being changed.
建立现代教学评价标准，转变教学观念；
应用推荐