NASA has researched using robot snakes as an alternative to vehicles - cars - with wheels. - - What is the definition of "vehicles"? - - "Vehicles" means __________. Choose one answer. a. cars b. snakes c. alternative d. researched
NASA has researched using robot snakes as an alternative to vehicles - cars - with wheels. - - What is the definition of "vehicles"? - - "Vehicles" means __________.Choose one answer. a. cars b. snakes c. alternative d. researched