根据LPG的物理性质说明LPG泄漏后的特点?
参考答案:
由于液化石油气比空气重,泄漏后不易挥发和扩散,而是往低处流动和积聚,很容易达到爆炸极限,遇明火就会发生爆炸。
The old farmer, _____ the badly injured and burnt soldier, came out of the burning farmhouse, calling continuously for help.
A.supporting
B.having supported
C.being supported by
D.being supported
患者,女,43岁,已婚。经来量多、色淡红、质清稀,面色白,气短懒言,肢软无力,心悸怔忡,舌淡,脉细弱,检查:子宫正常大小,双附件正常,血红蛋白9g/L。诊断为月经过多,治疗应首选
A.补中益气汤加维生素C、铁剂B.举元煎加维生素C、铁剂C.保阴煎加维生素C、铁剂D.失笑散加维生素C、铁剂E.八珍汤