40.对地球引力的研究表明，在不寻常的负荷之下地壳和地幔会发生位移。

40. Studies of the gravity field of the Earth indicate that its crust and mantle yield when unusual weight is placed on them.

39.大陆分水岭是指北美洛矶山脉上的一道想象线，该线把大西洋流域和太平洋流域区分开来。

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.

38.国际市场研究者的活动范围常常较国内市场研究者广阔。

38. The activities of the international marketing researcher are frequently much broader than those of the domestic marketer.

37. Lucretia Mott's的影响巨大，所以一些权威部门认定她为美国女权运动的创始人。

37. Lucretia Mott's influence was so significant that she has been credited by some authorities as the originator of feminism in the United States.

36. Everglades是美国境内最为荒凉和人迹罕至的地区之一，此处有大量的野生动植物而且大多受(法律)保护。

36. One of the wildest and most inaccessible parts of the United States is the Everglades where wildlife is abundant and largely protected.