Under SARS, study at home

fernandochang

Here are some questions which I can't not figure out.
Could anybody explain me WHY?
THANK YOU VERY MUCH


LUXIN CRITICAL REASONING LOOSE-LEAFING
24.Although historical research and anthropological research often complement one another, the two disciplines retain important distinctions because of the fundamental questions that each poses. Historians are ultimately interested in why change occurred, whereas anthropologists are concerned with the meaning of actions and systems.

Which of the following is implied in the passage above?
(A)The meaning of actions and systems do not fully explain why change occurred.
(B)The distinctions between life and art are diminishing.
(C)Actions and systems are not usually subject to historical change.
(D)Anthropological research is not concerned with change.
(E)The questions posed by the two disciplines share certain assumptions about human behavior.
A):A

25.Each of the academic journals THOUGHT and ERGO has a review committee to prevent misattributed quotations from appearing in its published articles. Nevertheless, about 10 percent of the quotations in THOUGHT’s published articles are misattributed, whereas ERGO contains no misattributions. ERGO’s committee is more effective, therefore, than THOUGHT’s at finding misattributed quotations.

The argument above assumes that

(A)most of the articles submitted to THOUGHT for publication contain misattributed quotations
(B)there are at least some misattributed quotations in articles submitted to ERGO for publication
(C)the members of ERGO’s committee are, on the whole, more knowledgeable than are the members of THOUGHT’s committee.
(D)the number of misattributed quotations ina journal is an accurate measure of how carefully that journal is edited.
(E)the authors who submit articles to ERGO for publication are more thorough in attributing quotations than are the authors who submit articles to THOUGHT.
A):B

26.Newborn kittens or monkeys that wear a patch over one eye for 2 weeks after birth never develop normal vision, even after the patch is removed. There thus appears to be a critical early period during which visual experience is necessary for normal development of vision.

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

(A)Adult men and women who wear a patch over one eye for 2 weeks retain normal vision in the unpatched eye.
(B)Newborn animals normally do not have good visual acuity.
(C)Animals 2 months old are much less affected than are newborns by wearing a patch over one eye for 2 weeks.
(D)When young children wear dark glasses, they often have difficulty with depth perception.
(E)Some aspects of vision have been proved to be learned, rather than inherited, behavior
A):C

27.People whose bodies cannot produce the substance cytochrome P450 are 3 times as likely to develop Parkinson’s disease, a disease that affects the brain, as are people whose bodies do produce this substance. Since cytochrome P450 protects the brain from toxic chemicals, tocis chemicals probably play a role in the development of Parkinson’s disease.

Which of the following, if true, most strongly supports the argument?

(A)It will soon be possible for cytochrome P450 to be synthesized for the treatment of people whose bodies cannot produce this substance.
(B)Many people whose bodies are unable to produce cytochrome P450 lack the ability to produce certain other substances as well.
(C)Cytochrome P450 has no effect on the brain other than to protect it from toxic chemicals.
(D)People with Parkinson’s disease often exhibit a marked lessening in the severity of their symptoms when they are treated with dopamine a chemical produced naturally in the brain.
(E)Many people with Parkinson’s disease have the ability to produce cytochrome P450 naturally.
A):C