二灰稳定土中的粉煤灰用量越多,早期强度越低,()个月后龄期的强度增长幅度也越大。
A.4
B.6
C.3
D.5
参考答案:D
患者女,19个月,主因"喉鸣11天,加重3天"入院。患儿曾因为反复出现咳嗽、喘鸣和呼吸困难多次住院。入院查体:体温36.7℃,呼吸35次/分,心率110次/分,体重10kg,发育差,口唇无紫绀,呼吸急促,三凹征明显,喉部可闻及喉鸣音,双肺可闻及喘鸣音和痰鸣音,心脏听诊第二肋间可闻及2/6级收缩期杂音,腹平软,肝脾肋下未及,双下肢无水肿。
肺动脉吊带的手术并发症有()
A.气管软化
B.气管狭窄
C.气管吻合口瘘
D.乳糜胸
E.支气管胸膜瘘
F.左肺动脉栓塞
()is a method used in Critical Path Methodology for constructing a project schedule network diagram that uses boxes or rectangles, referred to as nodes, to represent activities and connects them with arrows that show the logical relationships that exist between them.
A.PERT
B.AOA
C.WBS
D.PDM