下列关于二尖瓣关闭不全的描述哪些是正确的() A.多伴有房颤 B.左室容量超负荷 发布时间:2017-05-05 03:43 │ 来源:www.tikuol.com 题型:多项选择题 问题: 下列关于二尖瓣关闭不全的描述哪些是正确的()A.多伴有房颤 B.左室容量超负荷 C.很少增加肺循环阻力 D.可以通过增加心肌收缩力和降低心率来代偿 E.麻醉处理应防止高血压
题型:多项选择题 To have a computer without being connected to the Web is like having an old radio when everybody else has a color TV. That helps explain ______ businesses are setting up Net sites even though profits are nowhere to see.A.reasonsB.the reason forC.whyD.why that 查看答案