【简答题】Last summer, 15-year-old Bob had a problem. Like a lot of children. Bob was interested in doing many things. He liked dancing most and wanted to join a dancing group. But Bob’s high school didn’t have...
【判断题】C Now try this: Dr. Collins is a delegate at the conference, and has been attending the sessions on computer-aided building design. This morning he took notes of the discussion he attended. He is lea...