此试题出现在
Which one of the followings is incorrect?（）
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，the"middle class"and the"working 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 of"received pronunciation"which 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 school"immediately 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 "lunch"and 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 word"sir", except in school and in certain occupations(e.g. commerce, the army, etc.) sounds too servile to be commonly used.Why isn't the word “sir”commonly used in Britain？
游标卡尺测量面的表面粗糙度是用表面粗糙度比较样块以比较法检定。
舌肿胀而青紫晦暗者，是由于（）
行政职权是国家行政权的转化形式，（）。
CRH380A型动车组绝缘子损伤的大小、沿着周长长度在（）mm以下。
大定风珠主治（）证。
下列邻苯二甲酸酯类中列入我国水环境优先污染物黑名单的有（）。
我国B2B网站最主要的收入来源是（）
优质客户服务意识对服务人员意义包括（）。
暂无相关推荐~
局部加热矫正时，点状加热的特点是点的周围向中心收缩，使"点"的部分变紧一些，而点的周围以外变松些。
轴在局部加热校正时需要有跟原弯曲方向相反约（）的过弯曲值。
局部加热矫正的加热区有几种形状？各自特点是什么？
加热矫正时，线状加热的深度不应超过板厚。
焊后立即把焊件的全部或局部加热到250～350℃，保温2～6h，然后使其缓冷或空冷的工艺措施称为（）
使被连接的构件表面局部加热熔化成液体，添加填充金属或不添加填充金属，然后冷却结晶成一体的方法称为（）。
使被连接的构件表面局部加热熔化成液体，添加填充金属或不添加填充金属，然后冷却结晶成一体的方法称为（）。
水火弯板是利用钢材在局部加热，冷却过程中产生的（）和（）达到成型目的。
由于钢加热温度过高造成晶界氧化或局部熔化的现象称为（）。
金属局部加热的温度一般在（），该部分金属应处于（）状态。