It was once thought that air pollution
’affected only the area immediately around large cities with factories or
heavy automobile traffic. Today, we know that although these are the areas with
the worst air pollution, the problem is literally worldwide. On several
occasions over the past decade, a heavy cloud of air pollution has covered the
entire eastern halt’ of the United States and led to health warning even in
rural areas away from any major concentration of manufacturing and automobile
traffic. In fact, the very climate of the entire earth may be affected by air
pollution. Some scientists feel that the increasing concentration of carbon
dioxide in the air resulting from the burning of coal and oil is creating a
"greenhouse effect" holding in heat reflected from the earth and raising the
world’s average temperature. If this A. The Greenhouse Effect B. The Burning of Coal and Oil C. The Possible Effect of Air Pollution D. The Possibility of Temperature Drop [单项选择]男,4岁,半月前感冒、发热、咽痛,继之腰痛,四肢及面部水肿,查血压90/ 60mmHg,尿蛋白(++++),血胆固醇11.6 mmol/L,甘油三酯2.8mmol/L,血清白蛋白 22g/L,血清球蛋白24g/L,最可能的疾病是
A. 急性肾盂肾炎 B. 慢性肾小球肾炎 C. 肾病综合征(MC D. 慢性肾盂肾炎 E. 急性肾小球肾炎 [单选题]停车手信号的显示方式正确的是( )。
A.昼间:展开的红色信号旗 B.昼间:展开的绿色信号旗 C.夜间:绿色灯光 D.夜间:白色灯光 [单选题]高速道岔按侧向通过速度可分为时速80km、( )、220km三种类型。
A.140km B.160km C.170km D.180km [判断题]拱坝超载能力强、安全度高主要是由于坝体厚度较薄、材料均匀性好。
[多选题]《安全生产法》规定,( )危险物品或者处置废弃危险物品的,由有关主管部门依照有关法律、法规的规定和国家标准或者行业标准审批并实施监督管理。
A.生产 B.经营 C.运输 D.储存 E.使用 [判断题]取得烟草专卖批发企业许可证的企业,应当在许可证规定的时间范围和地域范围内,从事烟草制品的批发业务。( )
A.正确 B.错误 [单选题]沟(槽)开挖深度达到()及以上时,应采取措施防止土层塌方。
A.1.0m B.1.5m C.1.8m D.2.0m E.略 F.略 [简答题]绘图题:画出高压钠灯带电子启动器接线图。
[单项选择]“应收账款”科目所属明细科目期末有贷方余额,应在资产负债表( )项目内填列。
A. “预收账款” B. “预付账款” C. “应付账款” D. “其他应付款” [判断题]当零件磨损后降低了设备的使用性能时,就应该更换。
A.正确 B.错误 [填空题]柴油机工作时,操纵台燃油压力应为( )kPa。
[简答题]凡影响营业线行车的维修作业均应纳入天窗,天窗内无法完成的维修作业,必须纳入路局 。
[单项选择]
If you happened to be watching NBC on the first Sunday morning in August last summer, you would have seen something curious. There, on the set of Meet the Press, the host, David Gregory, was interviewing a guest who made a forceful case that the U. S. economy had become "very distorted. " In the wake of the recession, this guest explained, high-income individuals, large banks, and major corporations had experienced a "significant recovery"; the rest of the economy, by contrast—including small businesses and "a very significant amount of the labor force" —was stuck and still struggling. What we were seeing, he argued, was not a single economy at all, but rather "fundamentally two separate types of economy," increasingly distinct and divergent. [单选题]高压侧核相应使用相应电压等级的核相器,并逐相进行。
A.正确 B.错误 C./ D./ E./ F./ [单选题]录井现场判断地层由乌拉力克组进入克里摩里组的依据是()
A.A、出现厚层灰岩 B.B、乌拉力克组底部见到灰黑色泥页岩 C.C、邻井对比后,可以排除新钻遇的厚层灰岩不是乌拉力克组中部灰岩层 D.D、以上3条同时成立时 [判断题]一般根据工件材料选择电流种类。
A.正确 B.错误 [单选题]发生生产安全责任事故,除了应当查明事故单位责任并依法予以追究外,还应当对有失职、失职行为,追究( )。
A.刑事责任 B.连带责任 C.法律责任 D.同等责任 [名词解释]维生素
[多选题]截石位适用于( )
A.导尿 B.会阴部检查 C.直肠镜检查 D.阴道灌洗 E.膀胱镜检查 [判断题]使用钳型电流表时,应保证钳型电流表的电压等级与被测设备相符。
A.正确 B.错误 [单项选择]在国际货物运输中,对需要进行拼箱处理的货物,一般需由承运人在( )负责将不同发货人的货物拼装在一个集装箱内。
A. 集装箱堆场 B. 集装箱货运站 C. 发货人仓库 D. 码头 我来回答: 提交
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