Industrial pollution is not only a
problem for the countries of Europe and North America. It is an extremely
serious problem in some developing countries. For these counties, economic
growth is a very important aim. They want to introduce industries, and so they
put few controls on industries which cause pollution. Cubatao, an industrial town of 85,000 people in Brazil, is an example of the connection between industrial development and pollution. In 1954, Cubatao had no industry. Today it has more than twenty large factories, which produce many pollutants(污染物). The people of the town are suffering from the poisonous matters in their surroundings, and the bad effects can be clearly seen. Birth shortcomings are extremely common. Among children and grown-ups, lung problems are sometimes twelve times mo [单选题]调节酸碱平衡最重要的器官( )
A.肾 B.肺 C.肝 D.肠道 E.胰腺 [判断题]“始发列车的检查范围和质量标准侧梁下垂、车体倾斜或外胀不超限。( )
A.正确 B.错误 [多选题]直埋敷设时,在安装电缆接头处应(____),这一段沟称为接头坑。
A.加长 B.加宽 C.加深 D.加厚 [填空题]1MPa等于( ) N/m2。
[单项选择]对某一疾病危险因素研究,某因素在病因学上与疾病无关联,但可以引起所研究疾病的症状,从而提高了该疾病的检出率,引起对该无关因素的过高估计,这种偏倚是()
A. 奈曼偏倚 B. 排出偏倚 C. 混杂偏倚 D. 检出偏倚 E. 易感性偏倚 [单选题]对电焊工生命威胁最大的是()
A.电弧光 B.高频电磁场辐射 C.电击 D.电灼伤 [填空题]地壳表层岩石风化的结果,就形成了三种性质不同的风化产物,它们是()、()、()。
[判断题]钢丝绳在卷筒固定端应保留1圈。( )
A.正确 B.错误 [简答题]党在六届六中全会上称颂一支队伍是“在冰天雪地与敌周旋七年多的不怕困苦艰难奋斗之模范”,这支队伍的名称是什么?这支队伍的领导者是谁?
[判断题]铺设混凝土岔枕时,应用II型混凝土枕过渡。
A.正确 B.错误 我来回答: 提交
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