A gulper eel can eat an animal larger than itself and accommodate it in an expandable stomach.
它能一口咽下比它还大一只海底动物并且调节它胃变得扩大起来。
A gulper eel can eat an animal larger than itself and accommodate it in an expandable stomach.
它能一口咽下比它还大一只海底动物并且调节它胃变得扩大起来。
Expandable metal stent placement was the most effective therapy for tracheostenosis induced by nodular goiter.Patients with tracheostomy cannula placement were at high risk of severe infection.
人重建后均可缓解管狭窄,以管内支架置人术效果最佳,管切套管置入次之。
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