下列船舶中，免征船舶吨税的有（）。 A.养殖渔船 B.非机动驳船 C.军队征用的船舶

学校教育产生于()。

A．原始社会

B．奴隶社会

C．封建社会

D．资本主义社会

双代号网络计划中用虚箭线表示虚工作的目的在于正确表达相关工作的逻辑关系，具体表现在通过虚箭线实现( )。

A．断开某些前后工作的制约关系

B．引入某些前后工作的制约关系

C．明确某些工作的时间参数

D．改变某些相关工作的先后顺序

E．传递前后相关工作的时间参数

In the eighteenth—century one of the first modern economists, Adam Smith, thought that the “whole annual produce of the land and labour of every country” provided revenue to “three different orders of people: those who live by rent, those who live by wages, and those who live by profit”. Each successive stage of the industrial revolution, however, made the social structure more complicated.

Many intermediate groups grew up during the nineteenth century between the upper middle class and the working class. There were small—scale industrialists as well as large ones, small shopkeepers and tradesmen, officials and salaried employees, skilled and unskilled workers, and professional men such as doctors and teachers. Farmers and peasants continued in all countries as independent groups.

During the nineteenth and early twentieth centuries the possession of wealth inevitably affected a person’s social position. Intelligent industrialists with initiative made fortunes by their wits which lifted them into an economic group far higher than that of their working—class parents. But they lacked social training of the upper class, who despised them as the “new rich.”

They often sent their sons and daughters to special school to acquire social training. Here their children, mixed with the children of the upper classes, were accepted by them, and very often found marriage partners from among them. In the same way, a thrifty, hardworking labourer, though not clever himself, might save for his son enough to pay for an extended secondary school education in the hope that he would move in a “white collar” occupation, carrying with it a higher salary and a move up in the social scale.

In the twentieth century the increased taxation of higher incomes, the growth of the social services, and the wider development of educational opportunity have considerably altered the social outlook. The upper classes no longer are the sole, or even the main possessors of wealth, power and education, though inherited social position still carries considerable prestige.

60．If you compare the first and second paragraph, what groups of people did Adam Smith leave out in his classification?

A．Officials and employees.   B．Peasants and farmers.

C．Doctors and teachers.       D．Tradesmen and landlords.

61．Who were the ‘new rich’ during the nineteenth and early twentieth centuries?

A．They were still the upper class people.

B．They were owners of large factories.

C．They were intelligent industrialists.

D．They were skilled workers who made their fortune.

62．According to the passage, what did those people do who intended to make their children move up in the social ladder?

A．They saved a lot of money for their children to receive higher education.

B．They tried to find marriage partners from the children of the upper class.

C．They made greater fortunes by their wits.

D．They worked even harder to acquire social training.

63．In the twentieth century class differences have been partly smoothed out by ____.

A．increased income and decreased taxation

B．taxation, social services and educational opportunities

C．education, the increase of income and industrial development

D．the decrease of the upper class population

C  61—65 DBC

对声音骨传导的叙述正确的是（）。

A.声波作用于颅骨，整个头颅包括耳蜗作为一个整体而反复振动称移动式骨导

B.声波振动经颅骨传到耳蜗壁，耳蜗壁随着声波疏密时相而膨大与缩小称压缩式骨导

C.频率低于8000Hz的声波振动颅骨时，移动式骨导起主要作用

D.频率高于8000Hz的声波振动颅骨时，压缩式骨导起主要作用

E.在正常听觉功能中，由骨导传入耳蜗的声能甚微

近两年来，浙江省杭州市先后涌现出“最美妈妈”“最美司机”“最美爸爸”等平民英雄。“最美现象”从开始的一株株“盆景”发展成为一片引人入胜的“风景”，形成“美”的种子随风飘扬、处处生根、生命力极强的“蒲公英效应”，持续释放出巨大的“正能量”。

根据以上材料，回答道德榜样何以有如此巨大的力量？