单选题The polar lights known as auroras are produced when charged subatomic Line particles, such as protons and electrons flowing from the sun through Earth's magnetosphere, collide with atoms and molecules in Earth's upper atmosphere. For reasons not entirely understood, magnetic storms, called substorms, (5) occasionally occur where the flow of particles greatly increases and the interplanetary magnetic field becomes much stronger. These substorms are frequently visible on the Earth because they increase the intensity of the polar lights. Recently, five identical probes were blasted into orbit in a $200 million US project known as the THEMIS mission. Scientists hope the probes will be able to (10) investigate a number of mysteries about the nature of the substorm instabilities, including when and where substorms begin, how the individual components of the substorm interact, and how substorms power the auroras. The mission's secondary objectives involve understanding and predicting variations in the flux of electrons in Earth's outer radiation belt. These electrons pose a hazard to the (15) safety of both astronauts and spacecraft. Understanding substorm instabilities would thus improve success rates of future space missions.

单选题PROTEAN: IMMUTABLE ::

单选题For 21 years after the birth of the Prince of Wales, the______royal couple produced children at the rate of two every three years-eight boys and six girls in all.(A) veritable(B) preternatural(C) mimetic(D) fecund(E) pernicious

单选题The author implies that an advantage of McClary's form of musical criticism over that favored by the author is that it(A) tends to deny that some kind of contrast between masculinity and femininity will inevitably exist in any music(B) employs social values to account for the aesthetic choices involved a piece's composition more efficiently than the theory advocated by the author(C) re-inscribes models of gender difference for the most part identical to those it seeks to critique(D) pays closer attention to avant-garde music that may form the model for non- gendered musical forms(E) carries assumptions that for the basis of a more politically responsible strategy for criticizing the gendering of music

单选题The author presents all of the following as elements of contemporary chemistry that must be corrected EXCEPT

单选题There are sixquestions below， In a benefit concert each of exactly seven soloperformersHarris, Jones, McIntyre, Nelson, Strapp, Trevino, and Williamswillsing

单选题Which of the following, if true, would most seriously weaken the author's assertion in lines 19-20 that Anderson's theory "is corroborated both by the events of the American Revolution"?

单选题VINDICTIVE : MERCY ::(A) avaricious: greed(B) insightful: hope(C) modest: dignity(D) skeptical : trustfulness(E) pathetic : sympathy

单选题ROLE: UNDERSTUDY ::

单选题PRECIPITATE:(A) resolute(B) rebellious(C) anxious(D) separated(E) deliberate

单选题LAUDABLE:

单选题According to the author, music critics like Adorno err in doing which of the following? Ⅰ. Overemphasizing the hegemony of the ruling classes over cultural expression Ⅱ. Being ignorant of pop forms other than American Ⅲ. Paying too much attention to mainstream pop at the expense of other genres

单选题Doors were closing on our past, and soon the values we had lived by would become so obsolete that we would seem to people of the new age as ----as travelers from an ancient land

单选题Supporters praised the governor's action as a speedy and judicious solution, but critics condemned it by the same token as______and unfairly influenced by recent events.(A) indisposed(B) verbose(C) irrelevant(D) hasty(E) imperious

单选题The so-called Golden Rule is such an obvious, commonsensical truism that it seems almost foolish to______it.(A) legislate(B) amend(C) limn(D) annotate(E) enunciate

单选题LOGS: WOODPILE ::(A) notes : sheaf(B) trees : bush(C) wreckage : drift(D) hail: rain(E) nut :shell

单选题The primary purpose of the passage is to(A) build a case for increasing efforts to improve educational quality in indigenous societies(B) advocate an alternative to the explanation that the inequity of indigenous societies has resulted from outside forces(C) explain the failure of educational reforms in increasing the international appeal of decentralization of global authority(D) suggest the type of response to globalization that would help create social equity in indigenous societies(E) argue against the definition of globalization currently advocated by sociologists