【单选题】Properly done, the __________ ensures that all cash transactions have been accounted for and that the bank and book records of cash are correct.
【单选题】指出下列各量是几位有效数字 : 1)L=0.00001cm 2)T=1.0001S
【简答题】指出下列各量是几位有效数字: ( 1 ) L =0.00001cm ( ) ( 2 ) T =1.0001s ( ) ( 3 ) E =2.7 × 10 25 J ( ) ( 4 ) g =980.12306cm/s ( ) ( 5 ) U =7.000kV ...
【判断题】If the stratified sample is done properly, a small number of people will adequately represent the entire organization.