After it, the researchers sent in another robot loaded with medication to deliver it to the site of the battery bum to speed up healing.The artificial stomach being transparent on one side, the researchers were able to see the batteries and visually control the robots. If not, that will ...
A.People can express their thoughts and feelings to themselves or others through a “future mail”. B.The “future mail” business is not perfect. C.Only young people accept the new “future mail” service. D.“future mail” service can let people understand the meaning of “time”. ...