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One variety of partially biodegradable plastic beverage container is manufactured from small bits of plastic bound together by a degradable bonding agent such as cornstarch. Since only the bonding agent degrades, leaving the small bits of plastic, no less plastic refuse per container is produced when such containers are discarded than when comparable nonbiodegradable containers are discarded.

Which of the following, if true, most strengthens the argument above?

ABoth partially biodegradable and nonbiodegradable plastic beverage containers can be crushed completely flat by refuse compactors.
BThe partially biodegradable plastic beverage containers are made with more plastic than comparable nonbiodegradable ones in order to compensate for the weakening effect of the bonding agents.
CMany consumers are ecology-minded and prefer to buy a product sold in the partially biodegradable plastic beverage containers rather than in nonbiodegradable containers, even if the price is higher.
DThe manufacturing process for the partially biodegradable plastic beverage containers results in less plastic waste than the manufacturing process for nonbiodegradable plastic beverage containers.
ETechnological problems with recycling currently prevent the reuse as food or beverage containers of the plastic from either type of plastic beverage container.

正确答案: B

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sdcar2010

楼主

发表于 2010-11-10 21:46:09 | 显示全部楼层

The clause SINCE gives a reason, followed by the final conclusion that the new type of containter has no less plastics than the old one: either the same or maybe more.

B says that the new type contains more plastic than the old one.