题目内容
（请给出正确答案）
It is possible to extend lifespan by means of all the following EXCEPT______.
A．dietary intervention.
B．genetic alteration.
C．aging-related processes.
D．exercise.
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更多“It is possible to extend lifes…”相关的问题
Which of the following is a possible cause of the colony-collapse disorder？
A．Population explosion.
B．Decreasing number of flowers around.
C．Genetically modified products.
D．Diseases and chemicals.
It can be inferred from the passage that the development of our world______.
A.makes the existing languages more resilient
B.will make it possible that English is spoken by all the people
C.undermines the progress of culture
D.puts the minority languages on the edge of extinction
The manufacturer who increases the unit price of his product by changing his package size to lower the quantity delivered can, without undue hardship, put his product into boxes, hags, and tins that will contain even 4-ounce, 8 ounce, one-pound, two-pound quantities of break fast foods, cake mixes, etc. A study of drugstore and supermarket shelves will convince any observer that all possible sizes and shapes of boxes, jars, bottles, and tins are in use at the same time, and, as the package journals show, week by week, there is never any hesitation in introducing a new size and shape of box or bottle when it aids in product differentiation. The producers of packaged products argue strongly against changing sizes of packages to contain even weights and volumes, but no one in the trade comments unfavorably on the huge costs incurred by end less changes of package sizes, materials, shape, art work, and net weights that are used for improving a product's market position.
When a packaging expert explained that he was able to multiply the price of hard sweets by 2.5, from $ 1 to $2.50 by changing to a fancy jar, or that he had made a 5-ounce bottle look as though it held 8 ounces, he was in effect telling the public that packaging can be a very ex pensive luxury, h evidently does come high, when an average family pays about $ 200 a year for bottles, cans, boxes, jars and other containers, most of which can't be used for anything but stuffing the garbage can.
What started the public and Congressional concern about deceptive packaging rumpus'？
A．Consumers' complaints about the changes in package size.
B．Expensive packaging for poor quality products.
C．A senator's discovery of the tricks in packaging.
D．The rise in the unit price for many products.
，则EX=______．
