皮皮学，免费搜题
登录
搜题
【单选题】
关于电流,下列说法正确的是 ( )A.
通过截面的电荷量的多少就是电流的大小
B.
电流的方向就是电荷定向移动的方向
C.
在导体中,只要自由电荷在运动,就会形成电流
D.
导体的两端没有电压,就不能形成电流
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】完形填空 Miracles（奇迹）will happen if you don't give up trying. Even if you have 1 for one hundred times, you may succeed when you try for the 10lst time. When I was born, my doctor told my mother that ther...
【简答题】某三相异步电动机的额定转速为1460r/min，当负载转矩为额定转矩的一半时，电动机的转速为()。 (A) n＝1500r/min (B) n＝730r/min (C) n＝1460r/min (D) n＝1480r/min
【简答题】Miracles（奇迹）will happen if you don't give up trying. Even if you have 16 for one hundred times, you may succeed when you try for the 10lst time. When I was born, my doctor told my mother that there wa...
【单选题】Even if you had not been able to see her, you ______ us.
A.
told
B.
had told
C.
should tell
D.
should have told
【简答题】the cost of taking on with an extra employee. But even if you are not able to ____
【简答题】Did you make financial decisions last New Year ’ s Eve ? Did they fall by the wayside ? If so , you are not alone. 1 . Make a smart budget Did you plan to make a budget and fail to do so ? This is a p...
【简答题】Miracles（奇迹）will happen if you don’t give up trying. Even if you have 1 for one hundred times, you may succeed when you try for the 10lst time. When I was born, my doctor told my mother that there was...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
