【用戶】2017移民一定上
【年級】高二下
【評論內容】There are five homeland security missions. The missions and associated goals(省略未列出) are asfollows: Mission 1: Preventing Terrorism and Enhancing Security 防恐與強化安全Mission 2: Securing and Managing Our Borders 邊境安管Mission 3: Enforcing and Administering Our Immigration Laws 落實移民法規Mission 4: Safeguarding and Securing Cyberspace 網路安全Mission 5: Ensuring Resilience to Disasters 災害復原