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Food prices have risen sharply over the past few years. The good news is that the rate of increase has slowed. The bad news is that prices will not go down anytime soon. Also,the rate of global agricultural production is slowing. Yet it needs to increase 60% over the next 40 years to feed a growing world population. These are among the findings from the OECDFAO(the Organization for Economic Cooperation and Development & the Food and Agriculture Organization)Agricultural Outlook(展望)2012-2021. FAO Director­General Jose Graziano da Silva spoke at a news conference in Rome when the report was released. Mr.Da Silva said that,not surprisingly,the world's poorest people will feel the greatest effects of higher prices. “For the millions and millions of extremely poor people, the effects of high food prices are clear—they might have to change their diets,usually to ones with poorer nutrition quality, ”he said. In middle­income countries, people are gaining weight as they eat fewer fruits and vegetables and more of the cheaper but less nutritious foods. The report also shows that farmers in poorer countries will be leading efforts to feed an expected 9,000,000,000 people by 2050.The outlook predicts that farmers in Latin America,the Caribbean and sub­Saharan Africa will drive agricultural production in the future. Angel Gurria,Secretary­General of the OECD,said:“We can feed 9,000,000,000 people by 2050 on this planet. But we have to organize ourselves better.” But there are plenty of challenges.One­fourth of all agricultural land is damaged. Many countries face water shortages(短缺).And experts believe climate change is driving increasingly unusual weather patterns. The report says farmers need to use more growing methods that can't cause damage to the environment.At the same time,it says governments should end economically harmful supports and spend more money to increase agricultural production.Mr.Gurria says rich and poor nations need to treat agriculture more like a business. “In many cases,agriculture is related in people's minds to the poorest. It's related to aid. It's related to very poor living conditions,etc. We have got to shake that image away,”he said. 小题1:Why are people gaining weight in countries with average incomes? A.They eat more food. B.They eat less nutritious foods. C.They eat cheaper fruits. D.They eat cheaper vegetables. 小题2:It can be inferred from the text that poorer countries ______. A.are damaging a great part of their agricultural land B.will play a great role in feeding the growing world population C.are spending lots of money increasing agricultural production D.will not be so seriously affected by food prices as rich nations 小题3:What can be done to deal with the slow agricultural production? A.Improving the growing methods. B.Finding more agricultural land. C.Preventing governments' involvement. D.Improving farmers' living conditions. 小题4:Which of the following might Angel Gurria agree with? A.Agriculture means difficulty and sadness. B.Food prices will go down in the near future. C.It's almost impossible to feed 9,000,000,000 people by 2050. D.Both rich and poor countries should take agriculture seriously.
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【单选题】下列关于水溶性维生素特性,论述错误的是( )
A.
易溶于水,不溶于脂肪
B.
可在体内积蓄,引起中毒症
C.
大部分只要以辅酶的形式参与机体代谢
D.
在体内很少储存,易排除体外
E.
当机体饱和后,摄入的越多,从尿中排除越多
【单选题】关于内毒素的特性,以下错误的是( )
A.
来源于革兰阴性菌
B.
能用甲醛脱毒制成类毒素
C.
其化学成分是脂多糖
D.
性质稳定,耐热
E.
只有当菌体死亡裂解后才释放出来
【单选题】某病人因胃癌行胃大部分切除术。术后1天除生命体征外。护士最应重点观察的是()
A.
胃管引流液
B.
腹胀
C.
肠鸣音
D.
尿量
E.
神志
【单选题】以下关于内毒素特性说法,错误的是____________。
A.
有明显的组织选择性
B.
耐热
C.
毒性较弱
D.
引起相似的临床表现
【单选题】以下进货管理的质量指标中错误的是( )。
A.
来料合格批次率
B.
来料抽检缺陷率
C.
来料在线报废率
D.
准时交货率
【单选题】以下关于昆虫内部器官的特征与防治的关系,说法 错误 的是 。
A.
中肠液偏酸性的昆虫,可使用具酸性的农药进入消化系统进行防治。
B.
空气中含有一定量的毒气时,毒气可因昆虫的呼吸作用沿气门进入虫体,使昆虫中毒死亡。
C.
根据昆虫生殖系统的特征,可利用性诱法防治害虫。
D.
保幼激素的主要功能是抑制成虫器官的生长和分化,使虫体保持幼期状态。
【单选题】下面关于昙点论述是正确的是
A.
含有聚氧乙烯基的非离子表面活性剂具有此特性
B.
起昙现象实际就是表面活性剂溶解度变化所引起的
C.
起昙现象是可逆的,因此加热对制剂的稳定性不会造成影响
【单选题】关于第三代头孢菌素的特点,以下说法错误的是
A.
体内分布较广,从肾脏排泄
B.
基本没有肾毒性
C.
对革兰氏阴性菌作用不如第一、二代
D.
对 β- 内酰胺酶高度稳定
【判断题】富燃焰适用于一些在火焰中易形成难原子化氧化物的元素的原子吸收测定。( )
A.
正确
B.
错误
【单选题】下列关于水溶性维生素特性,论述错误的是
A.
易溶于水,不溶于脂肪
B.
可在体内积蓄,引起中毒症状
C.
大部分主要以辅酶的形式参与机体代谢
D.
在体内很少储存,易排出体外
E.
当机体饱和后,摄入的越多,从尿中排出越多
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