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The team meets John Thornton on the way to their destination, and he warns them never to move ahead, because ice ahead is incredibly thin. Hal ignores his advance and orders the team to proceed. Buck, however, feels that something is wrong ahead, and that he refuses. Hal beats Buck, and Thornton saves him. The rest of they moves ahead which is swallowed if the ice breaks beneath them.
At ordinary times, eustachian tube by extrusion and surrounding tissue in the export of nose pharynx ministry in closed state, but when the baby swallowing, chewing, sneezing, or crying, in order to maintain the balance of inside and outside the middle ear pressure, open eustachian tube is a moment. Because the baby's ear has not yet developed, eustachian tube is relatively short, low and flat, and position if you cross holding the baby, let him lie on your back with milk, milk bottle mouth open too large, bottles, vertical too straight, etc., are likely to cause the baby choking milk, and make the milk along the eustachian tube into the middle ear, induce otitis media.
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