Meanwhile, poorer nations have enjoyed some success in their battles against malnutrition and famine. Bat, according to research presented at the annual meeting of the American Association for the Advancement of Science, it is more a case of being out of the frying pan and into the fire. The most striking example actually in the poor world comes from the Pacific islands, home of the world's most obese communities. In 1966, 14% of the men on this island were obese while 100% of men under the age of 30 in 1996 were obese.
This increase in weight has been uneven as well as fast. As a result, undernourished and overnourished people frequently live cheek by jowl (面颊). The mix can even occur within a single household. A study of families in Indonesia found that nearly 10% contained both the hungry and the fat. This is a mysterious phenomenon, but might have something to do with people of different ages being given different amounts of food to eat.
The prospect of heading off these problems is bleak. In many affected countries there are cultural factors to contend with, such as an emphasis on eating large meals together, or on food as a form. of hospitality. Moreover, there is a good measure of disbelief on the part of policymakers that such a problem could exist in their countries. Add to that reluctance on the part of governments to spend resources on promoting diet and exercise while starvation is still a real threat, and the result is a recipe for inaction. Unless something is done soon, it might not be possible to turn the clock back.
The first sentence of the passage most probably implies that ________.
A.many Americans are obsessed with the rising temperature in their bathroom
B.more people are overweighed in the United States
C.people are doing more physical exercises with the help of scales
D.youngsters become taller and healthier thanks to more activities
第1题
软件危机爆发之后,荷兰科学家Bijkstra在1968年提出了一种新的程序设计思想,它就是()。
A.面向对象的程序设计
B.结构化程序设计
C.面向模块的程序设计
D.嵌入式程序设计
第2题
软件危机爆发之后,荷兰科学家Bijkstra1968年提出了一种新的程序设计思想,它就是()。
A.面向对象的程序设计
B.结构化程序设计
C.面向模块的程序设计
D.嵌入式程序设计
第5题
A.面向对象程序设计更为复杂,所以采用面向对象设计的软件开发效率更低。
B.面向对象程序设计可以提高软件的复用性
C.面向对象程序设计可以提高软件的可理解性
D.面向对象程序设计可以提高软件的开发效率
第6题
A.结构化程序设计方法
B.面向过程的程序设计方法
C.理论化程序设计方法
D.面向人类的程序设计方法
第9题
20世纪90年代后,面向对象程序设计成为主流的编程思想,下列叙述正确的是()。
A.面向对象程序设计思想完全抛弃了过程式程序设计的思想。
B.类(Class)是现实个体的抽象,包括成员变量和成员函数两部分。
C.面向对象程序设计将现实中的个体映射为软件世界中的类和对象,以增强软件系统的可扩展性。
D.对象是类的实现,如果将类看作是类型,则对象就是类型的变量。
正确答案: B、C、D
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