建筑企业的定期安全生产检查周期应根据()、性质及地区气候、地理环境等确定。
A. 生产经营单位年度计划
B. 生产经营单位的规模
C. 生产经营单位项目施工计划
D. 生产经营单位项目规模
Because the top of the connecting rod swings about the pin and changes direction each time the piston reaches mid-stroke, the relative speed between bearing and pin at mid-stroke is zero, ()to a maximum as the piston approaches top or bottom dead center and then () back to zero again as the piston approaches mid-stroke and the connecting rod changes direction.
A. accelerates;decelerates
B. accelerates;accelerates
C. decelerates;decelerates
D. decelerates;accelerate
某肝硬化患者,近2个月来右上腹持续性疼痛,发热,乏力。今日突然出现全腹疼1小时。检查,T38.7℃,BP9/5kPa(70/40mmHg),P120次/分,巩膜黄染,腹壁抵抗感,全腹压疼(+),反跳疼(+),肝肋下4.0cm,凸凹不平,脾肋下2.0cm,移动浊音(+),试验性穿刺抽出血性不凝固液体最可能的诊断是()
A. 肝硬化门静脉高压
B. 肝硬化并结核性腹膜炎
C. 肝硬化并原发性肝癌破裂
D. 消化性溃疡穿孔
E. 肝硬化并自发性腹膜炎
某市旅游局为满足风景区内餐饮场所使用液化气的需要,未经有关部门批准,在风景区内毗邻餐厅的原单层食品仓库(未进行任何改造的砖木结构,仓库面积350m2)储存了100瓶(15kg/瓶)液化石油气,仓库内还设有办公室。公安消防机构检查后,及时进行了查处。回答下列问题:
A. 正确
B. 错误