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提问人：网友mwxkingboy
发布时间：2022-01-07
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In America, education governed not by state and local governments, but by the national government（）
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更多“In America, education governed not by state and local governments, but by the national government（）”相关的问题
第1题
In America, education governed not by state and local governments, but by the national government()
第2题
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."
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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 to grow live virus in a 2-week-old fertilized chicken egg, then crack the egg, harvest the virus and extract the proteins used to provoke an immune response. Profit margins are narrow, demand is fickle and, because each year's flu virus is different, any leftover vaccine goes to waste. As a result, the United States now has only two major suppliers ( Chiron and Aventis Pasteur)--and when one of them runs into trouble, there isn' t much the other can do about it. "A vaccine maker can't just call up and order 40 million more fertilized eggs," says Manon Cox, of Connecticut-based Protein Sciences Corp. "There's a whole industry that's scheduled to produce a certain number of eggs at a certain time. "
Sleeker technologies are now in the works, and experts are hoping that this year's fiasco will speed the pace of innovation. The main challenge is to shift production from eggs into cell cultures--a medium already used to make most other vaccines. Flu vaccines are harder than most to produce this way, but several biotech companies are now pursuing this strategy, and one culture-based product (Solvay Pharmaceuticals' Invivac) has been cleared for marketing in Europe.
For Americans, the immediate challenge is to make the most of a limited supply. The government estimates that 95 million people still qualify for shots under the voluntary restrictions announced last week. That' s nearly twice the number of doses that clinics will have on hand, but only 60 million Americans seek out shots in a normal year. In fact, many experts are hoping the shortage will serve as an awareness campaign--encouraging the people who really need a flu shot to get one.
Shortages of flue vaccine show that ______.
A．America relies too much on foreign suppliers
B．the demand of flue vaccines is high this year
C．quality problem is a serious problem in flu vaccine production
D．the supply of flu vaccines is rather weak and America has no back-up measures to make it up
第3题
Municipal bonds that are issued to pay for essential public projects are exempt from federal taxation.
第5题
What are the two strategies that you adopt to identify similarities and differences of subject ?
A、Listing and brainstorming.
B、Venn diagram and table.
C、Exemplification and listing.
D、Venn diagram and brainstorming.
第6题
阅读下列资料，回答下列问题：福娃向世界各地的孩子们传递友谊、和平、积极进取的精神和人与自然和谐相处的美好阅读下列资料，回答下列问题： 福娃向世界各地的孩子们传递友谊、和平、积极进取的精神和人与自然和谐相处的美好愿望。福娃是五个可爱的亲密小伙伴，他们的造型融入了鱼、大熊猫、藏羚羊、燕子以及奥林匹克圣火的形象。每个娃娃都有一个琅琅上口的名字:“贝贝”、“晶晶”、“欢欢”、“迎迎”和“妮妮”，当把五个娃娃的名字连在一起，你会读出北京对世界的盛情邀请“北京欢迎您”。 （）“妮妮“的造型创意，来自北京的沙燕风筝。见下图是燕子的一组形态结构图，请从下图中提取有效信息，分析燕子适于飞行生活的特点：从①②两图的信息中能够获取___________________________，从③④两图的信息中能够获取____________________________。除上述四幅图中的信息外，根据你所掌握的知识，请你再写出几条鸟类适于飞行的特点：___________________________________________
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第7题
对下面语段中句子判断不正确的一项是（）。 1《舌尖上的中国》播出后风靡海内外。2摄制组历时几年,遍访各地美食,足迹踏遍全国各个省份,是中国使用高清设备拍摄的大型美食文化的一部纪录片。3用镜头展示烹饪技术,用美味包裹乡愁,用具体人物故事串联起中国各地的美食生态,寄托中国人对美食和生活的美好追求。4它让人们爱上那一个个采摘者、种植者、打捞者,以及持守传统制作工艺的烹饪者,用那些我们熟知的食材,传达了有关于记忆的共同属性,所有人的心被击中了
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A．第①句没有语病。
B．第②句里“足迹”与“踏遍”属于词语搭配不当。
C．第③句缺少主语。
D．第④句语序不当。
第8题
下列不属于禁止过境货物的是:来自或运往我国停止或禁止贸易的国家和地区的货物B.军事途径运输下列不属于禁止过境货物的是:来自或运往我国停止或禁止贸易的国家和地区的货物 B.军事途径运输的各种武器、弹药、爆炸品及军需品 C.鸦片、吗啡、海洛因、可卡因等毒品 D.各种烈性毒药、麻醉品
A．来自或运往我国停止或禁止贸易的国家和地区的货物
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B．军事途径运输的各种武器、弹药、爆炸品及军需品
C．鸦片、吗啡、海洛因、可卡因等毒品
D．各种烈性毒药、麻醉品
