哈哈大笑和咯咯大笑

Baby Laughs

A baby's laugh is unmistakable, but aside from its squealing, high-pitched quality, there's another factor that sets a baby's laugh apart from ours: babies laugh on the exhale and on the inhale. Whereas adult humans "tend to laugh predominantly on the exhale. The classic kind of 'ha ha ha.'" Disa Sauter, a psychologist who studies emotions at the University of Amsterdam.

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第五代移动通信

设问

  1. 五代普及还要几年
  2. 苹果会转而用谁的芯片
  3. 五代比四代快多少倍
  4. 哪些手机商明年有五代

现在想起来,美国和西方国家联手搞华为,莫不是为了争第五代移动通信技术,拖慢中国的步伐。

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