美国1787年宪法规定:立法权由国会掌握,行政权归于总统,司法权属于联邦最高法院。这一规定( )
已知210=m2=4n,其中m、n为正整数,求mn的值.
- Junior high school days will be over _______ a week. How are you feeling?
- I'm trying to keep my cool because we've been together ________ three years.