一条导线中的电流为1.6A,在1秒内有____个电子通过导线横截面。(电子电量e=1.6×10-19C)
以下有关血液的说法正确的是( )
1.73×3.7+1.73×6.3+1.73
=1.73×(3.7+6.3)
=1.73×10
=17.3
After the clothes were dry outside, she them and put them in her suitcase.