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NASA Makes Ventilator – level 1
01-05-2020 15:00
People in NASA build a new ventilator. NASA builds...Runners and Coronavirus – level 1
27-04-2020 15:00
People like to run outside. However, they are afraid...Runners and Coronavirus – level 2
27-04-2020 15:00
Many people like running outside; however, they do not...Ventilator Deal – level 1
22-04-2020 07:00
Journalists write about an unusual ventilator deal. In 2014,...