GRE习题练习

GRE考试易错题(2019/9/28)
1题:GAMBOL:
A、dodge
B、masquerade
C、digress
D、plod
E、vex
【单选题】:      

A.if the quantity inColumnA、is greater;
B.if the quantity in columnB、is greater;

C、if the two quantities are equal;

D、if you cannot determine the relationship based on the given information
2题:
This section includes three types of questions: QuantitativeComparison,Discrete Problem Solving, and NumericEntry. For each question, circle the letter of your choice or write your answer as instructe
D、
Directions for QuantitativeComparison Questions: Some of the following questions give you two quantities, one inColumnA、and one inColumnB,Compare the two quantities and choose one of the following answer choices:E、border=0 cellSpacing=0 cellPadding=0 width="100%">
【单选题】:      
3题:Hydrothermal vents along the mid-ocean ridges host ephemeral ecosystems of diverse fauna, including several crustacean species, some of which undergo development as larvae up to 1,000 meters above and 100 kilometers away from the vents. For example, vent crabBythograea thermydron (at stage of larvae) possess image-forming compound eyes with a visual pigment sensitive to the blue light of upper oceanic waters.As these larvae metamorphose into adulthood and begin to descend to and settle at the vents, they lose their imageforming optics and develop highsensitivity naked-retina eyes. With maturation,the spectral absorbance of the visual pigment in these eyes also shifts towards longer wavelengths and this progressive visual metamorphosis trades imaging for increased sensitivity, and changes spectral sensitivity to the dim, longer wavelengths of light existing at the bottom of the ocean.As hydrothermal vents produce light, vision may supplement thermal and chemical senses to orient post-larval settlement at vent sites.It may be inferred from the passage that the larval environment which surrounds the vent crabBythograea thermydron differs from its adult environment in that it________.
A、contains more thermal vents than the adult environment
B.receives more of its light from the sun than from hydrothermal vents
C.lacks the longer and dimmer wavelengths of light found in the adult environment
D.can be survived only by creatures equipped with image-forming optics
E.has a tendency to induce metamorphoses in the creatures that occupy it
【单选题】:        

4题: The author's primary purpose in the passage is to
A.(A) describe the limits of biologists' understanding of the phenomenon of cellular dormancy
B.(B) explain how certain organisms have adapted to withstand environmental adversity
C.(C) contrast the survival techniques of two organisms which use dormancy to survive hostile environments
D.(D) explain why endospores are so adept at surviving the traditional canning process
E.(E) suggest which methods are effective for killing endospores at which are not
【单选题】:        

5题: ARTLESS: GUILE : :
A.moribund: amicability
B.philistine: sophistication
C.invincible: enmity
D.dedicated: cunning
E.mighty: weakness
【单选题】:        

 

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