【C2】A．runB．moveC．sellD．visit

用于网络测试的DOS命令是（)。A． sfcB．moveC．pingD．copy

【C7】A．salesB．saleC．sellD．selling

A．runB．goC．dealD．work

查看材料A.runB.reduceC.takeD.regard

【C15】A．runB．run byC．run acrossD．run on

57._________A.. runB. reduceC. takeD.regard