When the headmaster spoke out his plan, the _____of the students in the class ____ against it. A. majority; were B. most; were C. most; did D. majority; did 答案:A关于点电荷的说法,正确的是: A.只有体积很小的带电体才能看成点电荷 B.体积很大的带电体一定不能看成点电荷 C.当两个带电体的大小及形状对它们之间的相互作用力的影响可以忽略,这两个带电体可看成点电荷 D.一切带电体都可以看成点电荷