[求助]GWD5-Q2,16,31

kingmouse

Q2:
Guidebook writer: I have visited hotels throughout the country and have noticed that in those built before 1930 the quality of the original carpentry work is generally superior to that in hotels built afterward. Clearly carpenters working on hotels before 1930 typically worked with more skill, care, and effort than carpenters who have worked on hotels built subsequently.

Which of the following, if true, most seriously weakens the guidebook writer’s argument?

A.The quality of original carpentry in hotels is generally far superior to the quality of original carpentry in other structures, such as houses and stores.

B.Hotels built since 1930 can generally accommodate more guests than those built before 1930.

C.The materials available to carpenters working before 1930 were not significantly different in quality from the materials available to carpenters working after 1930.

D.The better the quality of original carpentry in a building, the less likely that building is to fall into disuse and be demolished.

E.The average length of apprenticeship for carpenters has declined significantly since 1930.

選項A為什麼不對 ?
為什麼答案選D，是什麼意思，看不太懂有關聯 ?



Q16:
Maize contains the vitamin niacin, but not in a form the body can absorb. Pellagra is a disease that results from niacin deficiency. When maize was introduced into southern Europe from the Americas in the eighteenth century, it quickly became a dietary staple, and many Europeans who came to subsist primarily on maize developed pellagra. Pellagra was virtually unknown at that time in the Americas, however, even among people who subsisted primarily on maize.

Which of the following, if true, most helps to explain the contrasting incidence of pellagra described above?

A.Once introduced into southern Europe, maize became popular with landowners because of its high yields relative to other cereal crops.

B.Maize grown in the Americas contained more niacin than maize grown in Europe did.

C.Traditional ways of preparing maize in the Americas convert maize’s niacin into a nutritionally useful form.

D.In southern Europe many of the people who consumed maize also ate niacin-rich foods.

E.Before the discovery of pellagra’s link with niacin, it was widely believed that the disease was an infection that could be transmitted from person to person.

"contrasting incidence of pellagra" 是說什麼 ? 選項B為什麼錯 ?



Q31:
Studies in restaurants show that the tips left by customers who pay their bill in cash tend to be larger when the bill is presented on a tray that bears a credit-card logo. Consumer psychologists hypothesize that simply seeing a credit-card logo makes many credit-card holders willing to spend more because it reminds them that their spending power exceeds the cash they have immediately available.

Which of the following, if true, most strongly supports the psychologists’ interpretation of the studies?

A.The effect noted in the studies is not limited to patrons who have credit cards.

B.Patrons who are under financial pressure from their credit-card obligations tend to tip less when presented with a restaurant bill on a tray with credit-card logo than when the tray has no logo.

C.In virtually all of the cases in the studies, the patrons who paid bills in cash did not possess credit cards.

D.In general, restaurant patrons who pay their bills in cash leave larger tips than do those who pay by credit card.

E.The percentage of restaurant bills paid with given brand of credit card increases when that credit card’s logo is displayed on the tray with which the bill is prepared.

此題實在選不出來，請大大解析一下好嗎 ? 感激

wangtsong

第一题：The better the quality of original carpentry in a building, the less likely that building is to fall into disuse and be demolished.

假如不是the better... the less. 按照作者的逻辑，hotel 里面就得全是carpentry before 1930

第二题："contrasting incidence of pellagra" 是說什麼 ? : 解释有关pellagra的矛盾。

maize 含有不能直接吸收的niacin

欧洲人吃了，得Pellagra

美国人吃了，却没得Pellagra

所以，原因是，美国人能把maize做成niacin能被吸收的food.

第三题：选B

zyj1203