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Is a tractor-trailer a semi-trailer? These categories still need to be sorted out

"Tractor-trailer" is a noun we frequently see. For example, in the question bank of the driver's license test, we frequently see "no tractor-trailer during the internship period", which refers to the behavior of pulling the rear carriage with a vehicle. In fact, tractor-trailer in addition to this level of verb meaning, also specifically refers to …

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Top 10 mondial des gardiens de but de football neuer changer le positionnement des gardiens de but lev yassin était un ancien Monsieur De football

10. Les neuilles Il a changé l’orientation du gardien traditionnel et redéfini le gardien. On ne s’attendait pas à ce qu’un gardien puisse encore jouer de la sorte. Mais il est seul dans le football. En 14 ans, il a été sélectionné dans le top 3 des golden balls en tant que gardien de but. …

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Nanoscale separation of channel and barrier claudins enables tight junction

significance Tight junction form selective osmotic seals that limit paracellular flux. Increased tight junction permeability is associated with intestinal disease. Previous studies have shown that casein kinase 2 (CK2) phosphorylates S408 within an unstructured region of the cytoplasmic tail of the tight junction protein occludin. Furthermore, CK2 inhibition and consequent S408 dephosphorylation reduced paracellular permeability in vitro and …

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