In a way, all of us are on a spaceship, the planet Earth. We move around the sun (36) 18 miles per second and never stop. On our spaceship we have five billion people and a limited supply of air, water, and land. The (37) have to be used carefully because we can’t buy new air, water, or land from (38) else.
The environment on our planet is a closed system: nothing new is ever added. Nature (39) its resources. Water, for example, evaporates and (40) as visible drops to form clouds. This same water returns to the Earth as rain or snow. The rain that falls today is actually the same water fell on the (41) 70 million years ago.
Today, the Earth is in trouble. Factories (42) dirty water into our rivers. Many fish die and the water becomes unhealthy for people to drink. Cars and factories put poisons (43) the air and cause plants, animals and people to get sick. People throw bottles and paper out of their car
A. air
B. cloud
C. world
D. land
It is hard to get any agreement on the
precise meaning of the term "social class" In everyday life, people tend to have
a different approach to those they consider their equals from that which they
assume with people they consider higher or lower than themselves in the social
scale. The criteria we use to place a new acquaintance, however, are a complex
mixture of factors. Dress, way of speaking, area of residence in a given city or
province, education and manners all play a part. In the eighteenth-century one of the first modern economists, Adam Smith, thought that the "whole annual produce of the land and labor of every country’ provided revenue to "three different orders of people: Those who live by rent, those who live by wages, those who live by profit" . Each successive stage of the industrial revolution, however, made the soci A. They have been partly smoothed out. B. They increased taxation of higher incomes. C. They have made the social services grow. D. They widely enhanced the education development. [判断题]茎的形成层环来源上都属于次生分生组织。
A.正确 B.错误 [单选题]法人行社()部门对本级不良贷款余额增减和不良贷款率变化的总体情况进行监测。
A.信贷管理部门 B.风险管理部门 C.审计部门 D.风险管理委员会 [不定项选择题]某省民政厅为了制定本省“十二五”时期的发展规划,需要采用抽样调查的方法,对本地区民间机构和社会团体进行调查。请根据上述材料回答下列问题:
该项统计调查应当报请( )。
A.国家统计局备案 B.国家统计局审批 C.该省统计局备案 D.该省统计局审批 [填空题]熔断器是用于断开()和()电路的。
[单选题]隧道开挖过程中,上台阶长度控制在()倍隧道开挖跨度,中间核心土维系开挖面的稳定。
A.1~1.2 B.1~1.5 C.1.5~2 D.1~2 [判断题]由于红色引人注目,视认性极好,常用于紧急停止和禁止信息:用红色
白色条纹组成,特别醒目,常用来表示禁止。
A.正确 B.错误 [单选题]紧急救护中,只有( )有权作出伤员死亡的判断。
A.医生 B.急救人员 C.监护人 D.领导 [填空题]混合收费车道入口工作流程中,如果车辆未安装OBU或者读取OBU失败,收费员根据目测判断其车型、车种及车牌识别器识别的车牌信息,通过收费专用键盘输入收费软件中,收费软件再把相关信息通过读写器写入( )。
[单项选择]
A. 3mg B. 4mg C. 5mg D. 8mg E. 10mg [单选题]年8月21日,王某向镇政府提出建房申请,同年8月27日,镇政府通知王某因为申请材料不全,告知不予受理。对此,下列说法正确的是
A.王某的申请材料不全的,镇政府应当当场告知王某补正 B.镇政府告知王某补正的,可以分几次告知需要补正的内容 C.镇政府决定不予受理是错误的 D.王某的申请材料不全的,如果不能当场作出的,镇政府应当在五日内一次告知镇某补正 [单选题]避难求生中,避难空间不包括()
A.避难层 B.封闭楼梯间、防烟楼梯间 C.卫生间 D.厨房 [单选题]工作票应使用统一的票面格式,采用计算机生成、打印或手工方式填写,至少一式( )份。
A.一 B.二 C.三 D.四 [多选题]【技能鉴定2019 高级工】现行线路防污闪事故的措施有( )。
A.增加绝缘子串的片数,提高线路绝缘水平 B.采用玻璃绝缘子 C.采用大吨位绝缘子 D.采用憎水性涂料 E.定期清扫绝缘子 F.定期测试和更换不良绝缘子 G.采用防污型绝缘子 [填空题]二次盐水pH:( )
[多选题]以下属于车站防汛物资的有()
A.潜水泵 B.拖线盘 C.遇水膨胀袋 D.干湿两用吸尘器 [填空题]《铁路旅客运输服务质量规范》(铁总运〔2016〕247号)规定:试开车门时开启车门缝隙不超过<--NRC-->,确认车门状态良好后立即关闭。
[判断题] 查照间隔应保证车轮对在最不利情况下,护轨能够制约一侧轮对,使另一侧车轮不冲击辙叉心,间隔应不得小于1391mm。( )
A.正确 B.错误 [单选题]在现代管理理论学派中,认为企业没有什么一成不变、普遍适应的“最佳的”管理理论和方法的学派是?
A.管理过程学派 B.行为科学学派 C.系统管理学派 D.权变理论学派 [填空题]动态新闻及其它新闻以()为主,通讯重于()、(),述评新闻兼有()两种作用。
[单选题]信号楼配备的行车备品及数量应在( )内规定。
A.《段规》 B.《站细》 C.《行规》 D.《技规》 [单项选择]高速公路的路面面层,宜选用( )。
A. 沥青混凝土混合料 B. 沥青碎石混合料 C. 乳化沥青碎石混合料 D. 沥青表面处治 [单选题]由零件上、下偏差所限定的区域称为配合公差带。( )
A. 正确 B. 错误 我来回答: 提交
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