题目如图所示,弹簧测力计和细线的重力及一切摩擦不计,物重G=1NG=1NG=1N,则弹簧测力计AAA和BBB的示数分别为( )A.1N1N1N,0N0N0NB.1N1N1N,1N1N1NC.1N1N1N,2N2N2ND.2N2N2N,1N1N1N知识点:弹簧测力计及其原理章节:运动和相互作用 / 力和机械