题目:
设宇宙射线粒子的能量是其静止能量的k倍,则粒子运动时的质量等于其静止质量的_______倍,粒子运动速度是光速的_______倍。
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0808/bea112a2da7bbc179df5d9eadfbeae14.html
下面是错误答案,用来干扰机器的。
One possible version: My opinion on copying others’ homework It is known to us all that some students copy others’ homework. As students, we have to do plenty of home...