试题与答案

制定《银行业从业人员职业操守》的目的是,规范银行业从业人员职业行为,提高中国银行业从

题型:判断题

题目:

制定《银行业从业人员职业操守》的目的是,规范银行业从业人员职业行为,提高中国银行业从业人员整体素质和职业道德水准,建立健康的银行业企业文化和信用文化,维护银行业良好信誉,促进银行业的健康发展。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D解析:码是一个元组区别于其他元组的依据,同时也是一个元组赖以存在的条件。在一个关系中,不可能存在两个不同的元组在码属性上取值相同,也不可能存在码或码的一部分为空值的元组。注意:在一个关系...

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题型:填空题
选择正确的单词填空。
1. We               our family and friends to our               
2. We put                               on our house. 
3. Our friends                gifts for us.
4. We                our family and friends gifts, too.
5. We sing                 songs at Christmas.
Christmas lights    give    house
invite    special    bring
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题型:完形填空
配对阅读。左栏是对5个学生做演讲时存在问题的描述,请在右栏为每个学生选择一个合适的建议,并将答题卡上对应题目所选的选项涂黑。
小题1:Paul: I don’t think I can talk fluently(流利) because it’s difficult for me to remember all the words.
小题2:Billy: When I come face to face with the audience, where should my eyes fall upon? Do I have to look front, or look around from time to time?
小题3:Amy: When I am talking, I can’t help waving my hands, for I think it can help me express what I want to say better. But my classmates say I look funny and foolish by doing this.
小题4:Betty: I know that it’s not right to speak fast. But I am afraid that I can’t finish my talk in the given time if I speak slowly.
小题5:Tony: Should I talk in American English or British English?
A.Looking at and talking to one person in the audience helps keep you natural, but it feels foolish talking to only one person. Speak to that person as long as 15 seconds and then change another one.
B.The audience have a hard time understanding what they hear. They need your help. Slow down, pause(停顿) and guide the audience through your talk. Remember that you should help the audience understand what you are saying.
C.Make your voice a little lower than normal. Listeners like to listen to a relatively(相对) deep voice.
D.When you talk, try to be as natural as possible. Don’t try to memorize your words and read or recite them to your audience. You can use short notes to help you remember the important points.
E. You should know you and most of the people you talk to are different in many ways. Some of them may not know what you are talking about. Then speak to them on their terms and in their languages.
F. Concentrate on what you want to say. If you are always paying attention to gestures(手势),you will feel uncomfortable.
G. It’s true that there are some differences between American English and British English, but they’ll not cause much difficulty for listeners, so just speak the way you’re used to.
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题型:填空题

有机物X、A、B、C、D、E、F、G、H可以发生如下转化.其中C苯环上的一氯代物只有两种,烯烃H与HCl加成生成的产物有两种,D分子中所有的原子不可能均处在同一平面内.

提示:

+HIO4→R1CHO+R2CHO+HIO3+H2O

回答下列问题:

(1)C中含氧官能团的名称______;

(2)写出下列物质的结构简式:

D______,

X______;

(3)写出下列化学反应方程式

①H→G:______;

②F→E:______;

(4)C的另一种同分异构体甲满足以下条件:

①属于芳香族化合物;②苯环上的一氯取代物只有一种;③与足量的NaOH溶液完全反应1mol甲消耗3mol NaOH.

写出甲所有的结构简式:______.

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题型:填空题

实验探究氢气遇到氧气发生爆炸的条件:

(1)甲装置中仪器“A”的名称是        ;在实验室中利用氯酸钾和二氧化锰制取氧气,发生的化学方程式是                   ;利用锌粒和稀硫酸制取氢气,可以利用下列      (选填“甲”或“乙”)装置;

(2)利用丙装置将氢气、氧气混合气体收集起来,可以观察                数量,通过活塞控制两者气体的比例关系,利用一次性保鲜袋收集混合气体,然后直接点燃保鲜袋。

(3)实验共四次,实验数据及现象记录在下表:

实验次数第一次第二次第三次第四次
氢气与氧气的体积比1︰21︰41︰191︰39
氢气的体积百分数33%20%5%3.3%
点燃后现象爆炸爆炸爆炸保鲜袋燃烧,没有爆炸
 

由此可见氢气与氧气混合发生爆炸,除要达到燃烧的三个条件外,还和          有关。

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