中国联通数字专线的传输方式有哪些?() ["SDH","MSTP","ATM","WCDMA"]
依法行政的广泛的社会基础是() ["自然法理论和契约论","公有制","权力分立和制衡学说","经济原理和市场经济实践"]
硬母线焊接时,母线坡口两侧50mm范围内应处理干净,坡口加工面不得有()。 ["切痕","竖纹","毛刺","飞边"]
在资本运动中不仅能占有剩余价值而且能够创造剩余价值的资本是() ["产业资本","商业资本","借贷资本","银行资本"]
常用来进行清洗零件的是()等 ["煤油","汽油","酒精","水"]
带轮孔与轴的配合通常采用()过渡配合。