【正文】 (D)nor necessarily being evidence supports claims that __ the New World about AD 1000. (A)reached the Vikings (B)the Vikings reached (C)reaching the Vikings (D)the Vikings that reached and mist, like clouds, can formed only in the presence of dust particles. A B C D Spanish claiming title to all of North America and established the oldest city in A B C the United States, St. Augustine, Florida, in 1565. D federal system of government in Canada is similar to it of the United States. A B C D may be argued that geics, the study of heredity and variation, underwent the A B most rapid development of any science biological in the twentieth century. C D involves the interaction of three elements: rhythm, melodic, and harmony. A B C D Medicare program was established in 1965 to helping elderly United A B States citizens pay the increasing cost of health care. C D have found subtle neurological differences between the brains A B of men and women either in physical structure and in the way they function. C D have traditionally classified plants by grouping them according A B to similarities in their overall appear, their internal structure, and the form of C their reproductive ans. D figures first appeared more than 15,000 years ago in both A practically and decorative forms, such as shapes of buildings, cave B C paintings, and decorations on pottery. D the early nieenth century, the Cherokee nation of American Indians was adopted A B a written constitution based on that of the United States. C D able of writers to precisely record observations made about others enables them A B to include in their work a great deal of material outside their own experience. C D Connecticut, hundreds of houses dating from the seventeenth and eighteenth A B 6 centuries are preserved by more as 100 local or national historical societies. C D 1899 Mary Elizabeth Brown donated hers collection of over 200 musical A B C instruments to the Metropolitan Museum of art. D 29. Four different types of remembering are ordinarily distinguished by psychologists: A B C recollection, recall, recognize, and relearning. D are protected areas of water that can be used the transfer of passengers A B C and cargo between ships shore. D remains reveal that the farther back in time an animal lived, the smaller A B than was its brain in proportion to the size of its skull. C D 32. As do all insects, a butterfly has a hard outer covering, called it an exoskeleton, A B C that both supports and protects the body. D the early 190039。s parks. He and his brothers believed that parks should be adapted to the local topography, utilize the area39。s park system. 1. What does the passage mainly discuss? (A) The planned development of Seattle39。 findings. (C) They supported the Olmsteds39。s Comet. It turned out to be a bit like a very dark asteroid, measuring 16 by 8 kilometers. Ices have evaporated from its outer layers to leave a crust of nearly black dust all over the surface. Bright jets of gas from evaporating ice burst out on the side facing the Sun, where the surface gets heated up, carrying dust (15) with them. This is how the a and the tails are created. Comets grow tails only when they get warm enough for ice and dust to boil off. As a et39。s surface. (B) The nucleus of the et expanded. (C) The tail of the et straightened out. (D) Jets of gas caused the et to increase its speed. 17. All of the following statements about the tails of ets are true EXCEPT: (A) They can contain electrically charged or neutral particles. (B) They can be formed only when there is sufficient heat. (C) They are formed before the a expands. (D) They always point in the direction away from the Sun. 18. The word distinct in line 17 is closest in meaning to (A) visible (B) gaseous (C) separate (D) new 19. Compared to the tail of electrically charged atoms, the tail of neutral dust particles is relatively (A) long (B) curved (C) unpredictable (D) bright Questions 2029 Many prehistoric people subsisted as hunters and gatherers. Undoubtedly, game animals, including some very large species, provided major ponents of human diets. An important controversy centering on the question of human effects on prehistoric wildlife Line concerns the sudden disappearance of so many species of large animals at or near the end (5) of the Pleistocene epoch. Most paleontologists suspect that abrupt changes in climate led to the mass extinctions. Others, however, have concluded that prehistoric people drove many of those species to extinction through overhunting. In their Pleistocene overkill hypothesis, they cite what seems to be a remarkable coincidence