Could it be that variance in brain structure in these conditions contributes to the lack of social pleasure experienced by the patients ?
这些疾病中，大脑结构的变异造成缺乏社会愉悦是可能的吗？
Education : we educate families about best-outcome treatment and increase public awareness by providing information about autism prevalence , incidence and variance .
They conflated high food prices with greater food price volatility , which is best defined as variance around the food price level .
他们把高居不下的食品价格和幅度较大的食品价格波动（最好定义为食品价格水平的方差）混为一谈。
Although their relative importance varies from study to study , obviously , as empirical evidence suggests , firm effects and market effects are together of paramount importance in explaining observed variance in business unit returns .
