【正确答案】 D

【答案解析】[听力原文]
   A pilot from Virginia removed his son's loose tooth using a helicopter. Rick Rahim, from Virginia, flies helicopters for a living, and when his seven-year-old son's tooth became loose, he did not waste time by tying it to a door handle. Instead, Mr. Rahim tied one end of a string around his son's tooth and the other end to his full-sized commercial helicopter. The father of four posted a video clip of his playful venture on Facebook, advising parents to do fun and creative stuff with their kids. The video shows him launching the helicopter into the air and flying just far enough to successfully remove the loose tooth. At the end of the video, Mr. Rahim assures watchers that the circumstances were safe, and that he has 13 years of helicopter flying experience behind him. "You've got to do everything safe in life, and that's what I did today," he said. Mr. Rahim later said that although some parents have used remote control helicopters to pull teeth before, he might be the first to use a full-sized aircraft, as he can't find evidence that it has been done before.
   How did Rick Rahim remove his son's loose tooth?
事实细节题。新闻开头提到，弗吉尼亚的一位飞行员用一架直升机把他儿子松动的牙齿拔了下来。这位飞行员叫作Rick Rahim，在7岁的儿子牙齿松动后，他没有浪费时间把儿子的牙齿系在门把手上，而是将绳子的一端系在儿子的牙齿上，另一端系在他的全尺寸商业直升机上。