Objective : To investigate the conservative treatment in patients with intrathoracic esophageal and cardia anastomotic leak.目的: 探讨食管癌贲门癌术后胸内吻合口瘘的保守治疗.The leak detection pump ( LDP ) is used only with certain emission pac...
It all brought back memories of a not very edifying past.所有这些都让人回想起一段并不那么愉快的过去。In the 18th century art was seen, along with music and poetry, as something edifying.在18世纪，人们认为美术和音乐、诗歌一样，能够起到教化作用。Young students are advised...
This leaves fertile soil unprotected and prone to erosion.这会让肥沃的土壤暴露在外，使其容易受到侵蚀。You are playing Russian roulette every time you have unprotected sex.行房时不采取避孕措施是非常危险的。Machinery was often unprotected and accidents were fre...