Question

用丝绸摩擦过的玻璃棒去靠近甲、乙两个轻小物体，结果甲被排斥、乙被吸引。由此可以判定                                                                  

Ａ．甲一定带正电，乙一定带负电         

 Ｂ．甲一定带负电，乙一定带正电

Ｃ．甲一定带正电，乙不带电或带负电     

 Ｄ．甲一定带负电，乙不带电或带正电

 

Answer 1

【答案】

D

【解析】略