电路中的电流强度I=0.4 A.半分钟通过导线横截面的电子数为(电子电量为1.6× 发布时间:2017-05-17 15:05 │ 来源:www.tikuol.com 题型:填空题 问题: 电路中的电流强度I=0.4A.半分钟通过导线横截面的电子数为(电子电量为1.6×10-19C)______个.
题型:填空题 — Where is Tom's and Peter's homework? — The two students _____ ill yesterday, and they didn't come to school. [ ]A. are all B. were all C. are both D. were both 查看答案