关于毒物源的控制，下列设计错误的是（）。A、柜形排毒罩内有热源存在时，应在排风罩上部

手术后不宜早期下床活动的疾病有()

A．疝修补术后

B．输尿管切开取石术后

C．门静脉高压分流术后

D．肾部分切除或肾修补术后

E．膀胱部分切除术后

厚壁管在2mm及2mm以下应用套丝连接，对埋入泥土或暗配管宜采用套筒焊接，焊口应焊接牢固、严密，套筒长度为连接管外径的( )，连接管的对口应处在套管的中心。

A．0.5～0.3倍
B．0.5～3倍
C．1.5～2倍
D．1.5～3倍

下列对数字化经济时代的说法正确的是（）

A.信息传播完全自由

B.对传播管理提出了新的挑战

C.对个人的信息接收和利用行为提出了更高的要求

D.信息爆炸和信息泛滥造成传播的麻醉功能失调

E.信息成为数字化经济时代生产力发展的基本要素

建国初期，人民政府对资本主义工商业进行了合理调整，产生的影响是（）

A.社会主义工业化建设开始起步

B.资本主义工商业的社会主义改造开始起步

C.确立了工人阶级在企业中的领导地位

D.私人资本主义工商业得到恢复和发展

In Plato’s Utopia, here are three classes: the common people, the soldiers, and the guardians chosen by the legislator. The main problem, as Plato perceives, is to insure that the guardians shall carry out the intention of the legislator. For this purpose the first thing he proposes is education.

Education is divided into two parts, music and gymnastics. (46)Each has a wider meaning than at present: “music” means everything that is in the province of the muses, and “gymnastics” means everything concerned with physical training fitness. “Music” is almost as wide as what is now called “culture”, and “gymnastics” is somewhat wider than what “athletics” mean in the modern sense.

Culture is to be devoted to making men gentlemen, in the sense which, largely owing to Plato, is familiar in England. The Athens of his day was, in one respect, analogous to England in the nineteenth century: (47) there was in each an aristocracy enjoying wealth and social prestige, but having no monopoly of political power; and in each the aristocracy had to secure as much power as it could by means of impressive behavior. In Plato’s Utopia, however, the aristocracy rules unchecked.

Gravity, decorum and courage seem to be the qualities mainly to be cultivated in education. (48)There is to be a rigid censorship from very early years over the literature to which the young have access and the music they are allowed to hear. Mothers and nurses are to tell their children only authorized stories. Also, there is a censorship of music. The Lydian and Ionian harmonies are to be forbidden, the first because it expresses sorrow, the second because it is relaxed. (49)Only the Dorian (for courage) and the Phrygian (for temperance) are to be allowed, and permissible rhythms must be simple, and such as are expressive of a courageous and harmonious life.

As for gymnastics, the training of the body is to be very austere. No one is to eat fish, or meat cooked otherwise than roasted, and there must be no sauces or candies. People brought up on his regimen, he says, will have no need of doctors. Gymnastics applies to the training of mind as well. Up to a certain age, the young are to see no ugliness or vice. (50)But at a suitable moment, they must be exposed to “enchantments”, both in the shape of terrors that must not terrify, and of bad pleasures that must not seduce the will. Only after they have withstood these tests will they be judged fit to be guardians.

(47) there was in each an aristocracy enjoying wealth and social prestige, but having no monopoly of political power; and in each the aristocracy had to secure as much power as it could by means of impressive behavior.