单项选择题A. The laptop’s battery cannot be recharged.B. The laptop cannot be turn on properly.C. There are some scratches on the screen of the laptop.D. There are some power cords lost on the way of delivery.
单项选择题A. Installed softwares can be used to accomplish specific tasks.B. People can register to consult a doctor via television.C. Smart TV can provide relaxation, entertainment and education.D. Old people should not watch them constantly.