胃肠道手术,术前禁食的主要目的是A.防止术后吻合口瘘 B.避免术后腹胀 C.预防麻醉 发布时间:2017-06-19 01:35 │ 来源:www.tikuol.com 题型:单项选择题 问题: 胃肠道手术,术前禁食的主要目的是A.防止术后吻合口瘘B.避免术后腹胀C.预防麻醉或手术中呕吐造成窒息D.避免造成手术困难
题型:单项选择题 To reduce emissions of greenhouse gases, many countries are increasing the use of natural gas, wind and other forms of _______ energy.A.abandonedB.originalC.alternativeD.precious 查看答案