更多“联合国为了避免工业产品对环境的危害，于1987年9月邀请26”相关的问题
离心泵滑动轴承允许工作温度是小于（）摄氏度。
A.45；
B.55；
C.65；
D.75
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Hints for Reading Practice1. Most of us can find 15 minutes or half an hour each day for some specific regular activity. For example, one famous surgeon always made it a rule to spend at least 15 minutes on general reading before he went to sleep each day. Whether he went to bed at 10 p. m. or 2. 30 a. m. made no difference.2. Nearly all "Speed Reading" courses have a "pacing"——some timing device which lets the studentsknow how many words a minute he is reading. You can do this simply by looking at your watch every 5 or 10 minutes and noting down the page number you have reached.3. Obviously there is little point in increasing your reading speed if you do not understand what you are reading. If you find you have lost the thread of the story, or you cannot remember clearly the details of what was said, re-read the section or chapter.4. Take four or five pages of an interesting book you happen to be reading at the time. Read them as fast as you possibly can. Do not bother about whether you understand or not. If you keep doing this "lightning speed" reading for an extended period of time, you will usually find that your "normal" speed has increased.5. Most paragraphs in an article have a "a topic sentence" which expresses the central ideas. The opening paragraph often suggests the general direction and content of the piece, while paragraphs that follow expand or support the first. The closing paragraph often summarizes the very essence of what has been said.A. The Organization of an ArticleB. An Effective Way to Increase Reading SpeedC. Set Aside Time Each DayD. Check Your ComprehensionE. Check Your Reading SpeedF. Hints for Reading Practice
Paragraph 4
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留置导尿患者的导尿管更换应（）
A.隔日1次
B.每日1次
C.每日2次
D.每周1次
E.每周2次
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集团公司2015年工作会议强调，各级领导干部要做廉洁从业的表率，务必牢固树立清廉是幸福的基石理念，清清白白做人，干干净净干事，任何时候、任何情况下都必须敬法畏纪、遵规守矩，严格自律、严守底线，以良好的形象赢得职工群众的信任和拥护。
A . 正确
B . 错误
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盘发按操作方法和发式结构来分有四类，而（）不属于这种类型。
A.堆积型
B.盘绕型
C.生活型
D.包卷型
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GSM-R铁塔在无线通信系统中用来（）
A.盲区覆盖
B.增加天线高度
C.增加天线的服务半径
D.提高无线通信质量
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军人保障卡免收持卡人费用包括（）
A.年费、小额账户管理费、工本费
B.短信服务费
C.本*行异地交易费
D.发生在工商银行、农业银行、建设银行、邮政储蓄银行及我*行间的跨行ATM取现费
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通过加热方式进行的干燥操作，通常用于（）去湿。
A . A、液体
B . B、固体
C . C、气体
D . D、液体或固体
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整合营销理论最早是由( )提出的。
A.舒尔茨
B．科特勒
C．考夫曼
D．劳特朋
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下列不得领购使用增值税专用发票的有（ ）。
A.小规模纳税人
B.有法定情形的一般纳税人
C.一般纳税人
D.只缴营业税的纳税人
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以下属于老客可以享受的优惠的是（）。
A.定向发放型优惠券
B.会员VIP价格
C.新人优惠
D.老客特享
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Passage 2As regards social conventions，we must say a word about the wel-known English class system. This is an embarassing subject for English people，and one they tend to be ashamed of，though during the present century class-consciousness has grown less and less，and the class system less rigid. But it still exists below the surface. Broadly speaking，it means there are two clases，themiddle classand theworking class”.（We shall ignore for a moment the old“upper class，including the hereditary aristocracy，since it is extremely small in numbers；but some of its members have the right to sit in the House of Lords，and some newspapers take surprising interest in their private life.）The middle class consists chiefly of well-to-do businessmen and professional people of all kinds. The working class consists chiefly of manual and unskilled workers.The most obvious difference between them is in their accent. Middle-class people use slightly varying kinds ofreceived pronunciationwhich is the kind of English spoken by BBC announcers and taught to overseas pupils. Typical working-class people speak in many different local accents which are generally felt to be rather ugly and uneducated. One of the biggest barriers of social equality in England is the two-class education system. To have been to a so-called public schoolimmediately marks you out as one of the middle class. The middle classes tend to live a more formal life than working-class people, and are usually more cultured. Their midday meal is lunchand they have a rather formal evening meal called dinner, whereas the working man's dinner, if his working hours permit, is at midday, and his smaller, late-evening meal is called supper.As we have said, however, the class system is much less rigid than it was, and for a long time it has been government policy to reduce class distinctions. Working-class students very commonly receive a university education and enter the professions, and working-class incomes have grown so much recently that the distinctions between the two classes are becoming less and less clear. However, regardless of one's social status, certain standards of politeness are expected of everybody, and a well-bred person is polite to everyone he meets, and treats a laborer with the same respect he gives an important businessman. Servility inspires both embarrassment and dislike. Even the wordsir, except in school and in certain occupations(e.g. commerce, the army, etc.) sounds too servile to be commonly used.The“upper class”in England today_______.
A.are extremely small in number so that media pays no attention to them B.still use old words like Sir in their everyday life C.include the hereditary aristocracy D.refer only to the royal family
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关于税法的法定主义原则，下列说法错误的是（）。
A.税收的法定主义原则是税法至为重要的基本原则
B.税收的法定主义原则也可称为税收的最高法律原则
C.税收法定主义原则是确定国家征税和纳税人纳税的根本原则
D.税收法定主义原则的宗旨在于保障私人财富有偿转归国家所有这一重要事项以法律的形式加以明确界定，使之规范化并具有可预测性和稳定性
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甲企业“应收账款”科目期初借方余额40000元，本期收回应收的货款15000元，该科目期末为借方余额60000元，则企业本期必定还发生了（ ）。
A . 应收账款增加20000元B . 应收账款减少20000元C . 应收账款增加35000元D . 应收账款减少35000元
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