Shortages of flu vaccine are nothing new in America, but this year’s is a whopper. Until last week, it appeared that 100 million Americans would have access to flu shots this fall. Then British authorities, concerned about quality-control problems at a production plant in Liverpool, barred all further shipments by the Chiron Corp. Overnight, the U.S. vaccine supply dwindled by nearly half and federal health officials found themselves making an unusual plea. Instead of beseeching us all to get vaccinated, they’re now urging most healthy people between the ages of 2 and 64 not to. "This reemphasizes the fragility of our vaccine supply, " says Dr. Martin Myers of the National Network for Immunization Information, "and the lack of redundancy in our system. "
Why is such a basic health service so easily knocked out Mainly because private companies have had little incentive to pursue it. To create a single dose of flu vaccine, a manufacturer has
A. complicated process, high cost, low profit and high risk
B. shortages of fertilized chicken eggs
C. difficulty in growing live virus
D. fast changing of flu virus
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A.正确 B.错误 [不定项选择题]3月大豆到岸完税价为（ ）元／吨。
A.3140．48 B.3140．84 C.3170．48 D.3170．84 [简答题]
阅读下列材料，回答问题。 [单项选择]
Advances in computers and data networks inspire visions of a future "information economy" in which everyone will have (1) to gigabytes of all kinds of information anywhere and anytime. (2) information has always been a (3) difficult commodity to deal with, and, in some ways, computers and high-speed networks make the problems of buying, (4) , and distributing information goods worse (5) better. The evolution of the Internet itself (6) serious problems. (7) the Internet has been privatized, several companies are (8) to provide the backbones that will carry traffic (9) local networks, but (10) business models for interconnection—who pays how much for each packet (11) , for example—have (12) to be developed. (13) interconnection standards are developed that make (14) cheap and easy to transmit information across independent networks, competition will < [单项选择]政治制度研究中最传统的研究方法是( )
A. 系统分析 B. 制度分析 C. 阶级分析 D. 比较分析 [判断题]新闻媒体应当开展环境保护法律法规和环境保护知识的宣传，对环境违法行为进行舆论监督。（ ）
A.正确 B.错误 [单项选择]初产妇，25岁。妊娠40周，规律宫缩16小时，胎膜已破，宫缩弱。宫口开大5cm，S-1，胎心180次/分，宫缩时觉肛门坠胀。本例正确的处理是（）。
A. 左侧卧位、吸氧 B. 静脉滴注缩宫素 C. 立即行剖宫产术 D. 肌注哌替啶100mg E. 继续观察1小时后再决定分娩方式 [单项选择]加工精度越高的粮食，（）。
A. 各种维生素的保存率越高 B. 各种维生素的保存率越低 C. 维生素C的保存率越低，但维生素E的保存率不变 D. B族维生素保存率越低，但维生素C的保存率不变 [单项选择]商品X和商品Y的价格按相同的比率上升，而收入不变，则预算线( )。
A. 向左下方平行移动 B. 向右上方平行移动 C. 不变动 D. 向左下方或右上方平行移动 [多选题] 下列主体中， 有权对被申请回避的人员作出回避决定的是：
A.审判长 B.合议庭 C.本院院长 D.本院审判委员会 [单项选择]根据我国宪法规定，下列机关中，( )有权制定行政法规。
A. 全国人大常委会 B. 省级人大 C. 国务院各部委 D. 国务院 [判断题] 党对公安工作的领导主要是政治领导、思想领导和业务领导。
A.正确 B.错误 [单选题]患者心前区疼痛10分钟，心电图Ⅱ、Ⅲ、aVF导联S-T段上抬0.15mV，最可能的诊断是
A.急性心包炎 B.心肌炎 C.典型心绞痛 D.变异型心绞痛 E.正常心电图 [多选题]依据《国家电网公司安全工作规定》，省公司级单位、地市公司级单位、县公司级单位及所属的检修、运行、发电、煤矿企业（单位）每年应编制（ ）和（ ）。
A.年度工作计划 B.年度反事故措施计划 C.安全技术劳动保护措施计划 D.应急预案 [单项选择]规范：是指人们在特定环境下被要求如何行动、如何思维、如何体验的期望，是一种相对固定的行为表现。
根据以上的定义，下面哪种行为体现了规范( )。
A. 一个从小生活在海边的人到草原工作，慢慢适应了那里的生活 B. 律师在法庭上表现镇定、稳重、客观、富于正义感 C. 小郑身着背心和短裤，脚踏拖鞋参加好朋友的婚礼 D. 为了使大家玩得更开心，我们制定了新的游戏规则 [判断题]献血前两餐不吃油腻食物、不饮酒。但也不要空腹，可吃馒头、蔬菜等清淡食物，且最好洗一次澡或洗净双臂。献血前不能大量饮水。
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