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【简答题】
2010年第41届会将在上海举办,会的主题是“城市,让生活更美好”。回答下列问题: (1)①园地区的改造提升了上海的环境质量,位于规划区的一座大型钢铁厂搬迁后,附近居民将不再受到该厂产生的红棕色烟尘的困扰。你认为棕红色烟尘是__。 A.CaCO 3 粉尘 B.P 2 O 5 粉尘 C.Fe 2 O 3 粉尘 D.SiO 2 粉尘 ②上海白龙港污水处理厂升级改造,处理废水时加入明矾可作为混凝剂以吸附水中的杂质,明矾的化学式为___ _________;明矾净水的原理是(用离子方程式表示)________________________。 ③会期间,为了确保空气质量的优良率,人们需要定时测定空气中各种污染物的浓度来计算出空气污染指数。因此,人们需要监测的空气污染物除了可吸入颗粒物(PM 10 )、二氧化硫以外,还有___________________。 (2)会中国馆“东方之冠”,它由钢筋混凝土、7000多块红色铝板和1200多块玻璃等建成。 ①钢筋混凝土__________(选填“是”或“不是”)复合材料。 ② 生产硅酸盐水泥和普通玻璃都需要用到的主要原料是_______________。 ③ 石英玻璃化学稳定性强、膨胀系数小,是一种特种玻璃,石英玻璃的主要成分是______________;有机玻璃(聚甲基丙烯酸甲酯)实际上不是硅酸盐材料,而是一种______________(选填“橡胶”或“纤维”或“塑料”),有机玻璃是由甲基丙烯酸甲 酯在一定条件下通过_________________反应合成的有机高分子材料。 (3)低碳经济是以低能耗、低污染、低排放为基础的经济模式,上海会的亮点之一是实现“二氧化碳零排放”。 ① 现在人们使用乙醇汽油作 为汽车燃料充分体现了低碳经济,物质的量相同的乙醇与汽油(设为C 8 H 18 )均完全燃烧产生的CO 2 的物质的量之比为____________;人们已尝试使用_____________作为汽车燃料可真正实现“二氧化碳零排放”。 ② 停车场,安装有汽车尾气催化光解设施,它能将汽车尾气中CO和NO x 反应生成可参与大气生态环境循环的无毒气体,写出CO和NO x 在一定条件下反应的化学方程式:______________________________________________________。 ③ 会期间将用可降解的“玉米塑料”替代一次性饭盒、并可被用来制作会证件及胸卡,目的是为了防止产生_______________污染。
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皮皮学刷刷变学霸
举一反三
【单选题】肝素抗凝血作用的主要机制是
A.
阻碍凝血因子Ⅱ、Ⅶ、IX、X的合成
B.
抑制血小板聚集
C.
增强ATⅢ对凝血因子的灭活作用
D.
降低血中钙离子浓度
E.
促进纤维蛋白溶解
【单选题】___ difficulty you may have, we will always fight along with you.
A.
What
B.
How
C.
Whatever
D.
However
【单选题】However important we may consider school life to be, there is no denying the fact that children spend more time at home than in the classroom. Therefore, the great influence of parents cannot be ignor...
A.
home training is mom important than school training because a child spends so many hours with his parents
B.
teachers can and should help parents to understand and further the objective of the school
C.
them are many ways in which the mathematics program can be implemented at home
D.
parents have a responsibility to help students in doing homework
【简答题】However wealthy we may be, we can never find enough hours in the day to do everything we want. Economics deals with this problem through the concept of opportunity cost, which simply refers to whether...
【单选题】However important we may regard school life to be, there is no gainsaying the fact that children spend more time at home than in the classroom. Therefore, the great influence of parents cannot be igno...
A.
home training is more important than school training because a child spends so many hours with his parents
B.
teachers can and should help parents to understand and further the objectives of the school
C.
parents unwittingly have hindered and thwarted curricular objectives
D.
there are many ways in which the mathematics program can be implemented at home
【单选题】We like learning French, _____ we may never go to France. [     ]
A.
in case
B.
however
C.
even though
D.
since
【简答题】莫道不,帘卷西风,人比黄花瘦。“”“黄花”在句中是什么意思?
【判断题】流感病毒分为甲、乙、丙三型,其中甲型流感病毒易发生变异,可引起世界性流感大流行。
A.
正确
B.
错误
【单选题】患者,男性,50岁,从高空10米处坠落2h,送至急诊室时面色青紫、呼吸微弱,唤之不醒,下肢骨折端戳出伤口,有活动性出血。检查:血压70/40mmHg,心率134次/分,对此病人最先应采取的急救措施应该是:
A.
抗休克治疗
B.
开放气道,保持呼吸道通畅
C.
迅速止血
D.
固定患肢
E.
骨折复位
【单选题】学习预防医学应当树立的正确观点是
A.
预防为主,治疗为辅
B.
治疗为主,预防为辅
C.
治疗为主
D.
治疗与预防相结合
E.
以上都对
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