34. The closest distance from which an asteroid has been photographed using ground-based radar is 2.2 million miles， the distance from which the asteroid Toutatis was recently photographed. The closest photograph of an asteroid is of Gaspra， which was photographed from a distance of only 10，000 miles.
Which of the following can be properly concluded from the statements above?
(A) Toutatis is more likely to collide with the Earth than Gaspra is.
(B) Toutatis， unlike Gaspra， has only recently been discovered.
(C) Asteroids can be photographed only by using ground-based radar.
(D) Ground-based radar photography cannot take photographs of objects much beyond 2.2 million miles from Earth.
(E) The photograph of Gaspra was not taken using ground-based radar.
35. Which of the following most logically completes the argument below?Alone among living species， human beings experience adolescence， a period of accelerated physical growth prior to full maturity. Whether other hominid species， which are now all extinct and are known only through the fossil record， went through adolescence cannot be known， since
(A) the minimum acceleration in physical growth that would indicate adolescence might differ according to species
(B) the fossil record， though steadily expanding， will always remain incomplete
(C) detecting the adolescent growth spurt requires measurements on the same individual at differ-ent ages
(D) complete skeletons of extinct hominids are extremely rare
(E) human beings might be the first species to bene-fit from the survival advantages， if any， con-ferred by adolescence
36. Fossils of the coral Acrocora palmata that date from the last period when glaciers grew and consequently spread from the polar regions are found at ocean depths far greater than those at which A. palmata can now survive. Therefore， although the fossilized
A. palmata appears indistinguishable from A. palmata now living， it must have differed in important respects to have been able to live in deep water.The argument depends on the assumption that
(A) no fossils of the coral A. palmata have been found that date from periods when glaciers were not spreading from the polar regions
(B) geological disturbances since the last period during which glaciers spread have caused no major downward shift in the location of A. palmata fossils
(C) A. palmata now live in shallow waters in most of the same geographical regions as those in which deep-lying A. palmata fossils have been found
(D) A. palmata fossils have been found that date from each of the periods during which glaciers are known to have spread from the polar region
(E) A. palmata can live at greater depths where the ocean temperature is colder than they can where the ocean temperature is warmer
37. Conservationists have believed that by concentrating their preservation efforts on habitats rich in an easily surveyed group of species， such as birds， they would thereby be preserving areas rich in overall species diversity. This belief rests on a view that a geographical area rich in one group of species will also be rich in the other groups characteristic of the entire regional climate zone.
Which of the following findings about widely scattered tracts 10 kilometers by 10 kilometers in a temperate climate zone would most seriously challenge the conservationists' assumptions?
(A) The tracts show little damage from human intrusion and from pollution by human activities.
(B) Where a certain group of species， such as birds， is abundant， there is also an abundance of the species， such as insects， on which that group of species feeds， or in the case of plants， of the land and water resources it requires.
(C) The area of one of the tracts is generally large enough to contain a representative sample of the organisms in the region.
(D) There is little overlap between the list of tracts that are rich in species of butterflies and the list of those that are rich in species of birds.
(E) The highest concentration of individuals of rare species is found where the general diversity of species is greatest.
参考答案： 34.E 35.C 36.B 37.D