e’s solid is higher than the density of its liquid.
24.大多数物质遇冷收缩，所以他们的密度在固态时高于液态。 (来源：英语杂志 http://www.EnglishCN.com)
25. The mechanism by which brain cells store memories is not clearly understood.
26. By the middle of the twentieth century, painters and sculptors in the Unit
ed States had begun to exert a great worldwide influence over art.
27. In the eastern part of New Jersey lies the city of Elizabeth, a major ship
ping and manufacturing center.
28. Elizabeth Blackwell, the first woman medical doctor in the United States,
founded the New York Infirmary, an institution that has always had a completel
y female medical staff.
28. Elizabeth Blackwell，美国第一个女医生，创建了员工一直为女性纽约诊所。
29. Alexander Graham Bell once told his family that he would rather be remembe
red as a teacher of the deaf than as the inventor of the telephone.
29. Alexander Graham Bell曾告诉家人，他更愿意让后人记住他是聋子的老师，而非电话
30. Because its leaves remain green long after being picked, rosemary became a
ssociated with the idea of remembrance.
31. Although apparently rigid, bones exhibit a degree of elasticity that enabl
es the skeleton to withstand considerable impact.
32. That xenon could not FORM chemical compounds was once believed by scientists.
33. Research into the dynamics of storms is directed toward improving the abil
ity to predict these events and thus to minimize damage and avoid loss of life.
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.
35. Futurism, an early twentieth-century movement in art, rejected all traditi
ons and attempted to glorify contemporary life by emphasizing the machine and
36. One of the wildest and most inaccessible parts of the United States is the
Everglades where wildlife is abundant and largely protected.
37. Lucretia Mott’s influence was so significant that she has been credited b
y some authorities as the originator of feminism in the United States.
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。
38. The activities of the international marketing researcher are frequently mu
ch broader than those of the domestic marketer.
39. The continental divide refers to an imaginary line in the North American R
ockies that divides the waters flowing into the Atlantic Ocean from those flow
ing into the Pacific.
40. Studies of the gravity field of the Earth indicate that its crust and mant
le yield when unusual weight is placed on them.
41. The annual worth of Utah’s manufacturing is greater than that of its mini
ng and farming combined.
42. The wallflower is so called because its weak stems often grow on walls and
along stony cliffs for support.
43. It is the interaction between people, rather than the events that occur in
their lives, that is the main focus of social psychology.
44. No social crusade aroused Elizabeth Williams’ enthusiasm more than the ex
pansion of educational facilities for immigrants to the United States.
45. Quails typically have short rounded wings that enable them to spring into
full flight instantly when disturbed in their hiding places.
46. According to anthropologists, the earliest ancestors of humans that stood
upright resembled chimpanzees facially, with sloping foreheads and protruding