A:36/5R B:5/R C:5R/36 D:R/6 答案: 36/5R A proton and an electron, both at rest initially, combine to form a hydrogen atom 点我阅读全文
A:36/5R B:5/R C:5R/36 D:R/6 答案: 36/5R A proton and an electron, both at rest initially, combine to form a hydrogen atom 点我阅读全文