同时，观察已创建和已毁坏连接的平均数。
Also, observe the average number of connections created and destroyed.
他们同时观察了朋友数和状态内容(右图)。
They also looked at friend count and status content (right side).
对主栽品种的根尖细胞染色体数进行了观察；
The number of chromosomes in the root tip cells was observed.
数能提高观察能力，增长记忆力。
上四分位数是25%的观察值位于其上的值。
The upper quartile is that value above which 25 per cent of the observations lie.
上四分位数是25%的观察值位于其上的值。
The upper quartile is that value above which 25 per cent of the observations lie.
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