【单选题】Firefighters are often asked to speak to school and community groups about the importance of fire safety,particularly fire prevention and detection. Because smoke detectors reduce the risk of dying in...
A.
outside at least one of the bedrooms on any level of the home.
【简答题】When the lnternet connection is less than (1)__________________people very quickly (2)_______________it is the fault of the server.However,in many cases if they just made a(3)__________________to ins...