Result : there were statistical differences between the adult group and the pediatric group in ethmoid bulla hypertrophy and middle nasal concha etherealization 结果：筛泡肥大和中鼻甲气化的出现率在成年组和未成年组差异有统计学意义。
2.
Do not imagine that mathematics is hard and crabbed and repulsive to common sense ， it is merely the etherealization of common sense （别把数学想象为硬梆梆的、死绞蛮缠的、令人讨厌的、有悖于常识的东西，它只不过是赋予常识以灵性的东西。 ）
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