针对俄罗斯和中国的挑战，维吉尼亚级潜艇在北极和印太地区进行部署。USS Minnesota已经被派往关岛，而USS ...

美国海军最近对外展示了USS Massachusetts（马萨诸塞号）这艘核潜艇，这艘潜艇属于维吉尼亚级（Virginia-class）Block ...

The Department of Education has recently sent MIT and eight other universities a proposed "Compact for Academic Excellence in Higher Education," requiring them to make changes to their grading systems ...