单项选择题

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After 20 years of marriage, a husband may still not understand his wife. How is it that she is never at a 26     for words How can she 27      the names of a couple they met on 28      years ago Now we know 29     to tell him: it’s her brain. 　　
Although there are obviously cultural 30      for the differences in emotions and behavior, 31     breakthrough research reveals that the 32      of many puzzling differences between men and women may 33      in the head. Men’s and women’s brains 34      much in common, but they are definitely not the same 35      size, structure or insight. Broadly speaking, a woman’s brain, like her body, is ten to fifteen per cent smaller than a man’s, 36      the regions dedicated to language may be more densely 37      with brain cells. 　　
Girls generally speak earlier and read faster. The reason may be 38      females use both sides of the brain when they read. In 39       , males rely only on the left side.
At every age, women’ s memories 40      men’ s, They have a greater ability to 41___names with faces than men do, and they are 42       at recalling list. The events people remember best are those that an emotion is attached to. 43        women use more of their right brains, which 44      emotions, they may do this automatically.
While we don’t yet know what all these findings imply, one thing is 45       : male and fe-male brains do the same things, but they do them differently.

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