围堰的基本形式中,具有挡水水头高,底宽小,抗冲能力大,堰顶可溢流等特点的围堰是( 发布时间:2017-12-15 23:31 │ 来源:www.tikuol.com 题型:单项选择题 问题: 围堰的基本形式中,具有挡水水头高,底宽小,抗冲能力大,堰顶可溢流等特点的围堰是( )。A.木笼围堰 B.草土围堰C.钢板桩格形围堰 D.混凝土围堰
题型:单项选择题 男性,20岁,左前胸刀刺伤半小时。体格检查:血压10.7/8.0kPa,中心静脉压1.96kPa(20cmHO),心率150次/分,心音减弱,颈静脉怒张,最恰当的处理为()A.输液、输血,补充血容量B.摄X线胸片C.超声心动图D.心包穿刺E.胸腔闭式引流 查看答案
题型:单项选择题 New tombs found in Giza support the view that the Great Pyramids were built by free workers and not slaves, ______ widely believed, A.asB.whichC.whatD.that 查看答案