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所以蛇在捕食(bu shi)猎物的时候能张开(zhang kai)大嘴,吞食猎物,这都是因为蛇类在吞食动物时,还会对猎物进行缠绕、固定,以便头颈(tou jing)能够用劲,使嘴巴张大,包裹比自己身体粗或比自己头大的猎物,减小(jian xiao)吞食的...
ThreeVPNproviders-Astrill, StrongVPN and Golden Frog-claimed last week that their services had been disrupted and become unavailable for users on the Chinese mainland...