单选题EAGLE: TALON ::

单选题WHET : SHARPEN ::

单选题PolygonSUVNPQisequilateralandequiangularandTWORisarectangle．

单选题The author's attitude toward chemists' usage of simple reagent designs can best be described as(A) critical and admonitory(B) unconvinced but optimistic(C) laudatory and invested(D) interested but neutral(E) cautiously supportive

单选题Foreachpositiveintegern，

单选题After the Japanese attack on Pearl Harbor on December 7, 1941, Japanese-Americans were ______ of being spies for Japan, although there was no ______ to back up this accusation.(A) acquitted...buttress(B) tired...witness(C) reminded...reason(D) suspected...evidence(E) exonerated...money

单选题SOBRIETY: A. influence B. nonchalance C. holiness D. civility E. mirth

单选题We had been anticipating this maiden voyage for a full nine months, since the initial purchase of 109 acres of northern, forested property. The property included a large, deep, somewhat murky pond that we were eager to investigate. In late April, the wait for decent weather was over, even though the sky still held intermittent steel gray clouds and the thermometer registered a mere 54℉. We could wait no longer; Buck's Pond was begging to be explored. Four adults and a precocious Golden Retriever gingerly climbed into the over-sized five-person canoe and, surprisingly, remained dry as the helmsman shoved us off the sandy launch. A bit of wind created ripples on the surface of the water, but we could only remark that this same breeze would be aiding us on our way back to shore; there was no room for any negative thoughts to mar our excitement and enthusiasm for this long-awaited adventure.

单选题Which of the following, if true, would most weaken the author's proposed solution for increasing African-American employment?

单选题It can be inferred from the passage that the Cepheid variable method of estimating galactic distances would be likely to yield experimentally flawed results in which of the following circumstances?(A) If the luminosity of ordinary stars being compared with that of a Cepheid star were affected by parallax.(B) If the apparent brightness of the Cepheid star being studied required an unusually long period of time to vary.(C) If the gravitational interference surrounding the Cepheid star being observed were more negligible than in most cases.(D) If the Cepheid star being studied existed on the periphery of the universe, at an extremely large distance from the observer.(E) If the Cepheid star being studied were in the same galaxy as the observer.

单选题A baby polar bear named Knut at the Berlin Zoo is the epicenter of a debate about animal rights and the ethics of keeping animals in captivity. Knut and his brother were abandoned by their mother after being born at the zoo. Knut's sibling died, and Knut himself would have died as well, had the zoo officials not intervened. The zoo workers have been bottle-feeding the bear, and providing it with nourishment and care. Yet certain animal-rights activists say that the bear would have been better off dead than raised by humans, and some go as far as to say that Knut should be killed. They believe that the current treatment of the bear is inhumane, and will lead to future difficulty for Knut in interacting with other polar bears. They argue that since the mother rejected the cub, the zoo workers should have abided by the laws of nature, and the cub should have been allowed to die. Others have argued that in light of the fact that polar bears are an endangered species, it makes sense to keep as many bears as possible alive in captivity so that they can breed.

单选题REFINERY: PETROLEUM::

单选题Questions13-14refertothefollowingtables.YearsofLifeExpectancyatBirth(Lifeexpectancyinyears)

单选题It can be inferred from the passage that the author would argue that in determining population effects physiological energy requirements tend to be(A) entirely superfluous(B) globally consistent(C) not wholly explanatory(D) supremely crucial(E) unfortunately complicated

单选题GREENHOUSE: PLANT : :

单选题bility to ---- is the test of the perceptive historian, a history, after all, consists not only of what the historian has included, but also, in some sense, of what hasbeen left out

单选题BOLT : FABRIC ::(A) lock : key(B) book : paper(C) roll : film(D) needle : thread(E) light : lamp

单选题It is assumed that scientists will avoid making ---- claims about the results of their experiments because of the likelihood that they will be exposed when other researchers cannot ---- their findings

单选题Which of the following statements would most logically conclude the last paragraph of the passage?(A) All human activity is ultimately a product of the organization of our brains, and subject to its laws.(B) In art, something must always be left over for the imagination to perform.(C) Art has been a creative refuge for other unsatisfied ideals created by the brain through its abstractive process.(D) The future branch of aesthetics will study the neural basis of artistic creativity and achievement.(E) Art's richness lies in the fact that its power to disturb and arouse varies between individuals.

单选题Which of the following hypothetical discoveries, if made, would cast MOST doubt on the most recent conclusions regarding the function of the human appendix?