og两道逻辑题比较

marathon616

30.The Eurasian ruffe, a fish species inadvertently introduced into North America's Great Lakes in recent years, feeds on the eggs of lake whitefish, a native species, thus threatening the lakes' natural ecosystem. To help track the ruffe's spread, government agencies have produced wallet-sized cards about the ruffe. The cards contain pictures of the ruffe and explain the danger they pose; the cards also request anglers to report any ruffe they catch.

Which of the following, if true, would provide most support for the prediction that the agencies' action wi have its intended effect?

(A)The ruffe has spiny fins that make it unattractive as prey.
(B)Ruffe generally feed at night, but most recreational fishing on the Great Lakes is done during daytime hours,
(C)Most people who fish recreationally on the Great Lakes are interested in the preservation of the lake whitefish because it is a highly prized game fish.
(D)The ruffe is one of several nonnative species in the Great Lakes whose existence threatens the survival of lake whitefish populations there.
(E)The bait that most people use when fishing for whitefish on the Great Lakes is not attractive to ruffe.

46.If the county continues to collect residential trash at current levels, landfills will soon be overflowing and parkland will need to be used in order to create more space. Charging each household a fee for each pound of trash it puts out for collection will induce residents
to reduce the amount of trash they create; this charge will therefore protect the remaining county parkland.

Which of the following is an assumption made in drawing the conclusion above?

(A)        Residents will reduce the amount of trash they put out for collection by reducing the number of products they buy.
(B)        The collection fee will not significantly affect the purchasing power of most residents, even if their households do not reduce the amount of trash they put out.
(C)        The collection fee will not induce residents to dump their trash in the parklands illegally.
(D)        The beauty of county parkland is an important issue for most of the county's residents.
(E)        Landfills outside the county's borders could be used as dumping sites for the county's trash.

30选C，46选C。
觉得46的D选项和30的C有点像啊，是因为在46里C比D更好吗？

marathon616

还在入门阶段，有点晕晕的，求大神不笑话