更多“健康影响因素是指影响人群健康状态的因素。()”相关的问题
生产安全事故发生后，因抢救人员，防止事故扩大以及疏通等原因，需要移动事故现场物件的，应当（）。
A.做出标志 B.绘制现场简图 C.将物件集中安放在安全位置 D.妥然保存现场重要痕迹、物证
点击查看答案
吲哚美辛不良反应包括（）
A.上消化道溃疡
B.神经炎
C.巨幼红细胞性贫血
D.哮喘
E.食欲减退
点击查看答案
因为梁的弯矩跨中大，因此梁的箍筋配置也是跨中密而两端疏。
A.对 B.错
点击查看答案
下述出口补贴中，属于《补贴和反补贴协议》中“禁止使用补贴”的是（）
A.对于农产品的补贴
B.为公共利益而开支的补贴
C.为平衡地区贫富差异而开支的补贴
D.政府代为支付工业企业的信贷费用
点击查看答案
变异式CAPP系统又称为（）。
A.综合式 B.样件法 C.半生成式 D.生成式
点击查看答案
根据下列材料，请回答下列各题 We can begin our discussion of 'population as a global issue' with what most persons mean when theydiscuss 'the population problem': too many people on earth and a too rapid increase in the number added eachyear. The facts are not in dispute. It was quite right to employ the analogy that likened demographic(人口统计学的． growth to 'a long, thin power fuse that burns steadily and haltingly until it finally reaches the charge, andexplodes'. To understand the current situation, which is characterized by rapid increases in population, it is necessary tounderstand the history of population trends. Rapid growth is a comparatively recent phenomenon. Looking back atthe 8,000 years of demographic history, we find that populations have been virtually stable or growing ver~slightly for most of human history. For most of our ancestors, life was hard, often nasty, and very short. There washigh fertility in most places, but this was usually balanced by high mortality. For most of human history, it wasseldom the case that one in ten persons would//ve past forty, where infancy and childhood were especially riskyperiods. Often, societies were in clear danger of extinction because death rates could exceed their birth rates. Thus, the population problem throughout most of history was how to prevent extinction of the human race. This pattern is important to know. Not only does it put the current problems of demographic growth intoa historical perspective, but it suggests that the cause of rapid increase in population in recent years is not asudden enthusiasm for more children, but an improvement in the conditions that traditionally have caused highmortality. Demographic history can be divided into two major periods: a time of long, slow growth which extended fromabout 8000 B.C. till approximately 1650 A.D. and a period of rapid, dramatic growth since 1650. In the first periodof some 9,600 years, the population increased from some 8 million to 500 million in 1650. Between 1650 and thepresent, the population has increased from 500 million to more than 4 billion. And it is estimated that by the year2020 there will be 8 billion people throughout the word. One way to appreciate this dramatic difference in suchabstract numbers is to reduce the time frame. to something that is more manageable. Between 8000 B.C. and 1650,an average of only 50,000 persons was being added annually to the worlds population each year. At present, thisnumber is added every six hours. The increase is about 80,000,000 persons annually. According to the passage, 'population as a global issue'__________A.is quite unlike the population problem and thus doesnt need our concernB.focuses on tracking down the reason of rapid population growthC.deals with the same problem aroused by the population problemD.will manage the population growth problem from global perspectives
A.C.B.D.C.C.D.isE.focusesF.dealsG.will
点击查看答案
底特律被《福布斯》杂志评为2012年美国最悲惨城市。曾经有200万人口的底特律，现在只剩下70万人口。你认为底特律的衰败对它所在的密歇根州在政治方面可能产生的最直接的影响是（）
A.总统候选人的产生
B.参议员席位分配
C.最高法院大法官人选的产生
D.众议员席位分配
点击查看答案
下列关于 滚动轴承 与滑动轴承相比,其优点表述 错误的是________。
A. 滚动摩擦远小于滑动摩擦B. 节约铜，锡，等贵重金属C. 精度由轴承本身决定，故对安装与配合精度要求降低D. 滚动轴承本身内部间隙很小，故能提高机器的旋转精度
点击查看答案
向心推力轴承和推力向心轴承是同一类型的滚动轴承。
A . 正确
B . 错误
点击查看答案
焊接工艺评定是通过焊接试件、检验试样、考察焊接接头性能是否符合产品的技术条件，以评定（）是否合格。
A.所拟定的焊接工艺
B.焊工的技术水平
C.焊接试件
点击查看答案
关于锂聚合物电池性能描述，描述错误的是（）。
A.能量高、重量轻
B.放电电流大
C.单片电池电压高
D.耐过放
点击查看答案
幼儿园教育目标实现的主要途径是（）
A.幼儿教师
B.幼儿园一日活动
C.创设良好的幼儿园环境
D.幼儿园与家庭、社区的合作
点击查看答案
空气中半径为R，折射率为1.5的玻璃球的后壁有一小气泡，球外观察者看到气泡的象距为（）。
A.－R
B.－2R
C.－3R
D.－4R
点击查看答案
在设计子系统中，智能制造突出了产品的概念设计过程中（）的影响。
A.制造设备
B.制造工艺
C.消费需求
D.知识
点击查看答案
题目内容
（请给出正确答案）
参考答案
十点题库官方参考答案
（由十点题库聘请的专业题库老师提供的解答）
