在WINDOWS中，文件的属性包括只读、隐藏、系统、和____四种
B
暂无解析
ASalesConfirmationshouldbecounter______signedby______.
Wearepleasedtoinformyouthattheitemyourequestedcanbesupplied______stock.
Wearepleasedtosaythatweare______tosupplyyou______thegoodsyouwant.
_______atallisworthdoingwell.
近代新闻事业诞生的时间标志是()。
