【简答题】By , English words can be grouped into words and borrowed words.
【单选题】当滑动轴承的k= 10时,宜选用( )润滑
【单选题】点M (-2,5,3) 与平面 x-3y-6z+35=0 的距离为( )
【单选题】单相半波整流电路中,负载为 500Ω 电阻,变压器的副边电压为 12V ,则负载上电压平均值和二极管所承受的最高反向电压为( )
【简答题】点M (-2,5,3) 与平面 x-3y-6z+35=0 的距离为( )
【单选题】点M (-1,5,3) 与平面2 x-3y-6z-7=0 的距离为( )
【多选题】The words borrowed from Italian are .
【多选题】Which of the words are borrowed from French?
【单选题】Words may fall into native words and borrowed words by ______.