单选题 I took a job at a vet (兽医) clinic almost five decades ago. As an enthusiastic animal lover, I accepted the position on the condition that I wouldn't have to assist with any wounded animals. I couldn't bear to see any creature in pain. At the end of my first week, we were closing the office for the day when a young man ran up to us holding a severely injured Doberman pinscher puppy (杜宾幼犬) in his arms and begging us to save his life. The four-month-old pup had been hit by a car. The doctor and I ran back into the operating room. The only place the skin was still attached to this poor little animal's body was around one shoulder. The vet worked tirelessly for what seemed like hours, sewing him back together again. That was the easy part. The puppy had broken multiple bones, including his spine (脊椎) . If he survived the next few days, we were quite sure he would never walk. That day forever changed my life. I became the vet's assistant in all things medical. One of my first jobs was to give that Doberman puppy daily physical therapy. I remember moving his tiny legs to try to keep his muscles from weakening. Weeks went by until one day, I felt this little fighter push back ever so slightly. And he continued to push back till he could fall use his legs. Fast-forward about a year. I walked into the clinic's crowded waiting room and called the name of the next client. Suddenly, a huge Doberman who had been sanding quietly with his owner on the opposite side of the room broke loose and dashed toward me. I found myself pinned against the wall with this magnificent dog standing on his hind legs, his front paws on my shoulders, washing my face with abundant and joyful kisses! I still tear up in amazement at the display of love and gratitude the dog had for me that day all those years ago. Which was the possible position the author took originally at the clinic