(2016全国高三七联,D)题材:发明与技术词数:375限时:6分钟
Until recently,personal assistants were only a luxury(奢侈品)available for successful people and those wealthy enough to pay another human being to organize their lives.That could change,if technology firms have their way.Recently Amazon,Apple,Facebook,Google and Microsoft have been investing heavily in developing software that can copy some of the functions of personal assistants,such as booking restaurant reservations and offering reminders for coming meetings.Why are technology firms battling so fiercely with one another to offer virtual① personal assistants?