It’s just that the total area of sites with positive and negative charges are roughly equal (the two are typically within a fraction of a percent of each other).
只是带正负电的区域总面积是大致相当的（差别不超过千百分之一）。
While people generally regard anger as a negative emotion, it activates an area on the left side of the brain that is associated with many positive emotions.
尽管人们普遍把愤怒当做一个负性情感，但是它激活大脑左侧与很多正性情感相关的区域。
All the positive serum samples and some negative serum samples from each area were retested, the recombination rate was 97.21%.
对检出的全部阳性血清和部分阴性血清进行了复测，复合率为97.21%。
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