[单项选择]It vanished in 2002, a result of a bad fall. As my neurosurgeon explained, when my head hit the ground, my brain sloshed around, which smashed delicate nerve endings in my olfactory system. Maybe they’ll repair themselves, she said (in what struck me as much too casual a tone ), and maybe they won’t, If I had to lose something, it might as well have been smell; at least nothing about my personality or my memory had changed, as can happen with head trauma. So it seemed almost churlish to feel, as the months went on, so devastated by this particular loss.
But I was heartbroken. My sense of smell was always something I took pleasure in. Without scent, I felt as ff I were walking around the city without my contact lenses, dealing with people while wearing earplugs, moving through something sticky and thick. The sharpness of things, their specificity, diminished. I couldn’t even tell when the milk had gone bad. Oddly, my sense of taste remained perfectly fine, but I was still nervous a
A. the smash of delicate nerve endings
B. the loss of something
C. the change of personality and memory
D. the sense of smell

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