【单选题】d=5. 03894 and |d| is the decimal expression for d rounded to the nearest thousandth. Column A Column B The number of decimal places where d and |d| differ 4
A.
if the quantity in Column A is greater
B.
if the quantity in Column B is greater
C.
if the two quantity are equal
D.
if the relationship cannot be determined from the information given
【单选题】It is known that the uniform section of the magnetic path S = 5cm.^2, the average length is L = 100cm = 1m, the relative permeability of the medium is ur = 1000, the number of turns of the iron core ...
【简答题】It is known that 5% of men and 0.25% of women are color blind. It is also known that the number of men and women in this group is equal. Now we randomly select one of them, find out the probability th...