7. A 2011 study found that solving crossword puzzles_delayed the onset of memory decline in individuals between the ages of 75 and 85, but sped the decline (for reasons unknown) once a person showed signs of dementia.
(A) spitefully
(B) terminally
(C) permanently
(D) initially

答案：登入後查看
統計： A(7), B(3), C(4), D(48), E(0) #1884215