Americans are pairing off and staying together just as much as ever, but now it's without the rings, gowns and expensive photographers.
美国人依然出双入对,愿意与恋人长相厮守,只是现在没有了戒指、婚纱和重金聘来的摄影师。
In this paper, we will completely characterize all power endomorphisms of rings without zero divisor.
本文将完全刻划出无零因子环的所有幂自同态。
ResultsEmodin relaxed the phenylephrine and potasium chlorate induced contraction of aortic rings, either with or without intact endothelium , in a concentration-dependent manner.
结果大黄素对苯肾上腺素和氯化钾预收缩的内皮完整和去内皮血管环具有浓度依赖性的舒张作用。
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