物联网（IoT）是什么？

"The school's computers are connected to the internet, allowing students to research their projects online. "

"There are a number of household devices in a kitchen such as a dishwasher, a garbage disposal, or an electric can opener."

"My brother uses the internet to research information for his school project. "

"The smoke detectors in the house are sensors that alert us to fires. "

"The copy machine is connected to the network so it can now serve as a printer."

"The data shows that students in the class scored an average of 80% on the test. "

"My brother is very smart; he always gets the highest marks in school because he reads a lot of books. "

"The school implemented automation for attendance tracking, using a computer system to record student arrivals and departures. "

"That program runs on the X Window System platform."

"The integration of the new student into the class was smooth and successful. "

"The remote village was difficult to reach because the roads were very bad. "

"The teacher's analysis of the student's essay focused on identifying the strengths and weaknesses of the argument. "