首页 医学英语 考博攻略 特惠课程 历年真题

新东方在线 > 考博 > 考博英语 > 正文
医学英语全程班优惠 考博英语全程班特惠

华东政法学院考博英语真题7

2014-04-13 10:58:37来源：网络

华东政法学院考博英语真题7

　　Part II cioze [15 min.](15% )

　　Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on your answer sheet.

　　The difference between a liquid and a gas is obvious (21) the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and (22) it to the level of a free surface. A gas forms no free surface but (23) to diffuse throughout the space available: it must (24) be kept in a closed container, as (25) a planet’s atmosphere. The distinction was a prominent feature of early theories (26) the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a vapor without losing its identity, and another theory held that the two phases are (27) different kinds o f molecules. The theories now prevailing (28) a quit e different approach by emphasizing what liquids and gases have in common. They are both forms of matter that have no permanent structure, and they both flow easily. They are fluids.

　　The (29) similarly of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat. (30) a closed container partially filled with a liquid is heate

　　D. The li quid expands or (31), becomes less dense; some of it evaporates. (32), the vapor above the liquid surface becomes dense r as the evaporated molecules are added to it. The combination of temperature and pressure (33) the densities become equal is (34) the critical point. Above the critical point the liquid and the gas can no longer be (35); there is a single, undifferentiated fluid phase of uniform density.

考博必备！历年真题及答案

考博精品好课，就选新东方！

本文关键字: 考博 考博英语 考博英语真题

关注新东方在线服务号

回复【考博真题】领取备考必看真题集

更多资料

关注新东方在线服务号

关注新东方在线服务号，
免费获取考博必看干货资料

  • 1.打开手机微信【扫一扫】，识别上方二维码；
  • 2.点击【关注公众号】，回复对应关键字领取学习资料。
更多>>
更多内容
更多>>
更多好课>>
更多>>
更多资料
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10