lsat有疑问的题目们[求助]，有谁解答，谢谢

5or6

这些题目都是不懂
Set 5/II
13. If that insect is a bee, it can only sting once. It only did sting once. So it is a bee.
Which one of the following exhibits a pattern of reasoning most similar to that in the argument above?
(A) Spring is here. It has to be, because when it is spring, I cannot stop sneezing; and I just sneezed.
(B) When the sky is clear, the atmospheric pressure is high. At the moment, it is clearing up, so the
atmospheric pressure is bound to be high soon.
(C) Old and brittle paintings are always moved with extreme care. That particular painting is never moved with extreme care. So it must not be old and brittle.
(D) Only one more thunderstorm was needed to ruin that roof. But the roof was still fine a month later. There must not have been any thunderstorm over that month.
(E) To survive in the wild requires physical stamina like Mark’s. All the same, Mark’s fear of spiders would prevent his survival.


22. Public reports by national commissions, governors’ conference, and leadership groups have stressed the great need for better understanding of international affairs by the citizenry. If the country is to remain a leading nation in an era of international competitiveness, the need is undesirable. If there is such a need for the citizenry to have a better understanding of international affairs, then all of our new teachers must be prepared to teach their subject matter with an international orientation.
If all of the statements in the passage are true, which one of the following must also be true?
(A) If the country is to remain a leading nation in an era of international competitiveness, then new teachers must be prepared to teach their subject matter with an international orientation.
(B) If new teachers are prepared to teach their subject matter with an international orientation, then the country will remain a leading nation in an era of international competitiveness.
(C) If there is better understanding of international affairs by the citizenry, then the country will remain a leading nation in an era of international competitiveness.
(D) If the country is to remain a leading nation in an era of international competitiveness, then there is no need for the citizenry to have a better understanding of international affairs.
(E) Public reports from various groups and commissions have stressed the need for a more international orientation in the education of teachers.

D为什么不对



Set 3/18
Questions 17--18
The question whether intelligent life exists elsewhere in the universe is certainly imprecise, because we are not sure how different from use something might be and still count as "intelligent life" Yet we cannot just decide to define "intelligent life" in some more precise way since it is likely that we will find and recognize intelligent life elsewhere in the universe only if we leave our definitions open to new, unimagined possibilities.

18. The passage, if seen as an objection to an antecedent claim. Challenges that claim by:
(A) showing the claim to be irrelevant to the issue at hand
(B) citing examples that fail to fit proposed definition of "intelligent life"
(C) claiming that "intelligent life" cannot be adequately defined.
(D) arguing that the claim, if acted on, would be counterproductive
(E) maintaining that the claim is not supported by the available evidence.

Set 5/IV
9. An easy willingness to tell funny stories or jokes about oneself is the surest of supreme self-confidence. This willingness, often not acquired until late in life, is even more revealing than is good-natured acquiescence in having others poke fun at one.
Which one of the following inference is most supported by the statements above?
(A) A person who lacks self-confidence will enjoy neither telling nor hearing funny stories about himself or herself.
(B) People with high self-confidence do not tell funny stories or jokes about others.
(C) Highly self-confident people tell funny stories and jokes in order to let their audience know that they are self-confident.
(D) Most people would rather tell a funny story or joke than listen to one being told.
(E) Telling funny stories or jokes about people in their presence is a way of expressing one’s respect for them.


Questions 13-14
The only way that bookstores can profitably sell books at below-market prices is to get the books at a discount from publishers. Unless bookstores generate a high sales volume, however, they cannot get discounts from publishers. To generate such volume, bookstores must either cater to mass tastes or have exclusive access to a large specialized market, such as medical market, or both.
13. Which one of the following can be properly inferred from the passage?
(A) If a bookstore receives discounts from publishers, it will profitably sell books at below-market prices.
(B) A bookstore that caters to mass tastes or has exclusive access to a large specialized market will have a high sales volume.
(C) A bookstore that profitably sells books at below-market prices gets discounts from publishers.
(D) A bookstore that does not sell books at below-market prices does not get discounts from publishers.
(E) A bookstore that not only caters to mass tastes but also has exclusive access to a large specialized market cannot profitably sell books at below-market prices.
KEY: E


Set 10/Ii

11. Recently discovered fossil evidence casts doubt on the evolutionary theory that dinosaurs are more closely related to reptiles than to other classes of animals. Fossils show that some dinosaurs had hollow bones-a feature found today only in warm-blooded creatures, such as birds, that have a high metabolic rate. Dinosaurs had well-developed senses of sight and hearing, which is not true of present-day cold-blooded creatures like reptiles. The highly arched mouth roof of some dinosaurs would have permitted them to breathe while eating, as fast-breathing animals, such as birds, need to do. Today, all fast-breathing animals are warm-blooded. Finally, fossils reveal that many dinosaurs had a pattern of growth typical of warm-blooded animals.
The argument in the passage proceeds by
(A) attempting to justify one position by demonstrating that an opposing position is based on erroneous information
(B) establishing a general principle that it then uses to draw a conclusion about a particular case
(C) dismissing a claim made about the present on the basis of historical evidence
(D) assuming that if all members of a category have a certain property then all things with that property belong to the category
(E) presenting evidence that a past phenomenon is more similar to one rather than the other of two present-day phenomena

KEY: E


12. Purebred dogs are prone to genetically determined abnormalities. Although such abnormalities often can be corrected by surgery, the cost can reach several thousand dollars. Since nonpurebred dogs rarely suffer from genetically determined abnormalities, potential dog owners who want to reduce the risk of incurring costly medical bills for their pets would be well advised to choose nonpurebred dogs.
Which one of the following, if true, most seriously weakens the argument?
(A) Most genetically determined abnormalities in dogs do not seriously affect a dog’s general well-being.
(B) All dogs, whether purebred or nonpurebred, are subject to the same common nongenetically determined diseases.
(C) Purebred dogs tend to have shorter natural life spans than do nonpurebred dogs.
(D) The purchase price of nonpurebred dogs tends to be lower than the purchase price of purebred dogs.
(E) A dog that does not have genetically determined abnormalities may nevertheless have offspring with such abnormalities.

KEY: a
Set 14/III
22. In a survey of consumers in an Eastern European nation, respondents were asked two questions about each of 400 famous Western brands: whether or not they recognized the brand name and whether or not they thought the products bearing that name were of high quality. The results of the survey were a rating and corresponding rank order for each brand based on recognition, and a second rating-plus-ranking based on approval. The brands ranked in the top 27 for recognition were those actually available in that nation. The approval rankings of these 27 brands often differed sharply from their recognition rankings. By contrast, most of the other brands had ratings, and thus rankings, that were essentially the same for recognition as for approval
Which one of the following, if each is a principle about consumer surveys, is violated by the survey described?
(A) Never ask all respondents a question if it cannot reasonably be answered by respondents who make a particular response to another question in the same survey
(B) Never ask a question that is likely to generate a large variety of responses that are difficult to group into a manageable number of categories
(C) Never ask all respondents a question that respondents cannot answer without giving up their anonymity
(D) It is better to ask the same question about ten different products than to ask ten different questions about a single product
(E) It is best to ask questions that a respondent can answer without fear of having gotten the answer wrong

fyhllj

please post your questions sperately that should be better for sb to answer them.