问答题 To google is now in broad usage as a verb for retrieving information from the intemet.If the tech giant has its way,"I Googled"will become a standard reply to the question,How did you get here?"On May 28th Google said it would build 100 prototype driverless cars without pedals,steering wheel or controls.It is the next stage in its apparent quest to be as popular on the road as on computer screens.People have dreamed about driverless motoring since at least the 1930s,but only in recent years have carmakers such as Mercedes-Benz and volvo given the matter more thought kitting out test cars with the sensors and sophisticated software required to negotiate busy roads.Google has roared ahead by designing a driverless car from the ground up.But bringing autonomous motoring to the world is proving harder than Google had envisaged