| 建筑工程施工安全技术 |
|
{{B}}Dangers Await Babies with Altitude{{/B}} Women who live in the world’s highest communities tend to give birth to under-weight babies, a new study suggests. These babies may grow into adults with a high risk of heart disease and strokes. Research has hinted that newborns in mountain communities are lighter than average, But it wasn’t clear whether this is due to reduced oxygen levels at high altitude or because their mothers are under-nourished — many people who live at high altitudes are relatively poor compared with those living lower down. To find out more, Dino Giussani and his team at Cambridge University studied the records of 400 births in Bolivia during 1997 and 1998. The babies were born in both rich and poor areas o [多选题]手工钨极氩弧焊的工艺参数有() 。
A.钨级直径 B.焊接电流 C.电弧电压 D.焊接速度 E.焊条直径 [简答题]画出LC滤波器的电路图。
[判断题]水利水电建设工程可以在竣工投入生产和使用后，再组织对安全设施进行验收。
A.正确 B.错误 [单选题]成人插胃管时,测量长度的正确方法为( )
A.从眉心到剑突 B. 从鼻尖到剑突 C. 从口到剑突 D. 从发际到剑突 [判断题]对电线、电器设备等应每半年至少全面检查一次，发现电线老化、破损、绝缘不良、超负荷用电等不安全因素，及时检修更换。
A.正确 B.错误 [单项选择]桥式起重机接地体的制作时，可选用专用接地体或用50mm³50mm³5mm（），截取长度为2.5m，其一端加工成尖状。
A. 铁管 B. 钢管 C. 角铁 D. 角钢 [多项选择]802.11b标准中支持的速率有以下哪几种。（）
A. 1M B. 2M C. 5.5M D. 12M [多选题]下列关于消防支队向消防总队报送信息时限的说法正确的是( )。
A.死亡3人以上(含本数)的火灾,消防支队在获知现场情况报告后,应立即向总队指挥中心上报《重要灭火救援情况报告表》 B.情况紧急.来不及书面报告时,要采取边处置.边电话报告的形式,迅速报告有关信息,并跟踪掌握进展情况,随时续报 C.以《值班信息快报》形式在2小时内上报总队 D.以《值班信息快报》形式在1小时内上报总队 [名词解释]体腔囊法
我来回答: 提交
|
