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问题 选择题

对于食品添加剂的论点中，合理的是 [ ]

A．绝大多数食品添加剂在过量使用时对人体有害，所以应禁止使用食品添加剂

B．防腐剂能延长食品的保存期，减少食品的浪费和变质，所以应大量使用防腐剂

C．食用新鲜食物比食用用防腐剂储存的食物有益，所以禁止使用防腐剂

D．对于什么物质可作食品添加剂以及食品添加剂的用量，都应有严格的规定

答案

答案：D

单项选择题

妊娠期间，小便频数，尿少色黄，艰涩刺痛，渴喜冷饮，舌红少苔，脉细数，其治疗常用方（）

A.导赤散

B.五苓散

C.八正散

D.知柏地黄汤

E.竹叶汤
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单项选择题

Throughout the 19th century and into the 20th, citizens of the United States maintained a bias against big cities. Most lived on farms and in small towns and believed cities to be centres of (1) , crime, poverty and moral (2) Their distrust was caused, (3) , by a national ideology that (4) farming the greatest occupation and rural living (5) to urban living. This attitude (6) even as the number of urban dwellers increased and cities became an essential (7) of the national landscape. Gradually, economic reality overcame ideology. Thousands (8) the precarious (不稳定的) life on the farm for more secure and better paying jobs in the city. But when these people (9) from the countryside, they carried their fears and suspicions with them. These new urbanities, already convinced that cities were (10) with great problems, eagerly (11) the progressive reforms that promised to bring order out of the (12) of the city.

One of many reforms came (13) the area of public utilities. Water and sewerage systems were usually operated by (14) governments, but the gas and electric networks were privately owned. Reformers feared that the privately owned utility companies would (15) exorbitant (过渡的) rates for these essential services and (16) them only to people who could afford them. Some city and state governments responded by (17) the utility companies, but a number of cities began to supply these services themselves. (18) of these reforms argued that public ownership and regulation would (19) widespread access to these utilities and guarantee a (20) price.

3（）

A. by origin

B. in part

C. at all

D. at random
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