单选题If 3a=b and 3c=d,then bd=(A) 3ac(B) 3a+c(c) 6a+c(D) 9ac(E) 9a+c
单选题
单选题CORRECTIVE: AMEND::
单选题It can be inferred from the passage that during yearly equinoxes, jet streams tend to(A) move at velocities slower than those at which they move the summer but faster than those at which they move in the winter(B) move from toward the east from the west in accordance with the deflection process caused by the Coriolis force(C) move at velocities faster than those at which they move the summer but slower than those at which they move in the winter(D) move at velocities equal to those of other planets that have similar polar temperature gradients(E) move at velocities equal to that of the centrifugal motion that causes the deflection of the jetstream's direction
单选题CAPITAL: INVEST ::
单选题MILD:
单选题CONTAMINATE:(A) revive(B) adore(C) filter(D) improve(E) cleanse
单选题ANARCHY：
单选题TORNADO: AIR ::
单选题The author of the passage is primarily concerned with(A) revealing a commonly ignored distinction(B) proposing a return to a traditional taxonomical system(C) describing an way to resolve a taxonomical dilemma(D) assessing the success of a new taxonomical method(E) predicting a change in future taxonomy
单选题Which of the following best describes the organization of the first paragraph?
单选题Whatistheareaofthetriangleinthefigurebelow?(A)4.5(B)9(C)10(D)12.5(E)20
单选题High software prices are frequently said to ------- widespread illegal copying, although the opposite --- that high prices are the cause of the copying -- is equally plausible
单选题CRUCIAL: PERTINENT::(A) loathsome: impossible(B) false : vague(C) peculiar : tangential(D) conspicuous : perceptible(E) central : peripheral
单选题According to the passage, in the Cepheid variable method all of the following have a significant role in the calculation of the distance of a galaxy EXCEPT(A) The intrinsic luminosity of a Cepheid(B) The comparative luminosity of ordinary stars(C) The observed brightness of the Cepheid(D) The data suggesting the expansion of the universe(E) The correction of the period-luminosity relation for the star being observed
单选题Ifx%ofyis10,whatisy?
单选题Although the scientist's recommendations may have been ______ , the students had trouble following his ______ presentation and were, therefore, against his proposal.(A) plausible.. organized(B) absurd .. intricate(C) realistic .. convoluted(D) judicious .. dynamic(E) ubiquitous .. empirical
单选题TALK : MUMBLE ::(A) smile : simper(B) type : paint(C) chant : speak(D) dive : drift(E) stroll : ramble
单选题APOLOGIST:
单选题Inthecorrectlyworkeddivisionproblemabove，eachofthesymbols□and△representsadigit．