-Trade capability. 来自 Cambridge English Corpus Integrins consist of domains that bind divalent cations that are important for receptor-ligand interactions linking extracellular molecules, the actin cytoskeleton and cytoplasmic signaling proteins. 来自 Cambridge English Corpus Brownian dynamics analyze of the multiply-occupied cation 当淘宝商家拒绝退款、拖延到账甚至“人间蒸发”，消费者... https://edwiniiifd.blogoxo.com/39544043/everything-about-whats-a-surfactant