The density of sleep spindle and K-complex were significantly correlated with normal FNE.

睡眠纺锤密度和K综合波密度与正常fne显著相关。

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Furthermore, the network model composed by many the same circuits may pro-duce waves accord with the shape of K-complex.

而由大量这种相同环路组成的网络模型则在皮层处可产生符合K -综合波的波形。

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The ore mineral assemblage of Dayishan wollastonite deposit is complex being composed of wollastonite, diopside, idocrase, k-feldspar, albite, calcite and quartz.

大义山硅灰石矿床矿石矿物组合复杂，由硅灰石、透辉石、符山石、钾长石、钠长石、方解石、石英等组成。

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Ask in advance if an ETF will generate a standard 1099 tax form or the more complex K-1.

WSJ: BlackRock Wants Some ETFs to Be Sold Under a Different Label

Instead of getting a simple 1099 dividend form, MLP investors receive a more complex K-1 filing with varying degrees of tax deferral and sometimes even taxable income in multiple states.

FORBES: Magazine Article

Our experience would confirm this. 401(k) record-keeping is exceedingly complex.

FORBES: 401(k)s: Far More Dangerous Than IRAs (March 2, 2001)