【正文】 pact. ，但它也有一定的彈性，使得骨骼能夠承受相當?shù)拇驌簟? 46. According to anthropologists, the earliest ancestors of humans that stood upright resembled chimpanzees facially, with sloping foreheads and protruding brows. ，直立行走的人的鼻祖面部輪廓與黑猩猩相似，額頭后傾，眉毛突出。 42. The wallflower is so called because its weak stems often grow on walls and along stony cliffs for support. ，是因為其脆弱的枝干經(jīng)常要靠墻壁或順石崖生長，以便有所依附。 27. In the eastern part of New Jersey lies the city of Elizabeth, a major shipping and manufacturing center. ，一個重要的航運和制造業(yè)中心，坐落于新澤西州的東部。 11. Acids are chemical pounds that, in water solution, have a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red. ，它在溶于水時具有強烈的氣味和對金屬的腐蝕性，并且能夠使某些藍色植物染料變紅。 8. With modern offices being more mechanized, designers are attempting to personalize them with warmer, less severe interiors. ，設計師們正試圖利用較為溫暖而不太嚴肅的內部裝飾來使其具有親切感。 24. Most substance contract when they freeze so that the density of a substance’s solid is higher than the density of its liquid. ，所以他們的密度在固態(tài)時高于液態(tài)。 39. The continental divide refers to an imaginary line in the North American Rockies that divides the waters flowing into the Atlantic Ocean from those flowing into the Pacific. ，該線把大西洋流域和太平洋流域區(qū)分開來。 49. Children with parents whose guidance is firm, consistent, and rational are inclined to possess high levels of selfconfidence. ，始終如一和理性，孩子就有可能充滿自信。 34. The elimination of inflation would ensure that the amount of money used in repaying a loan would have the same value as the amount of money borrowed. 。 18. Fungi are importan