考试网 >> 外语考试 >> GRE >> GRE试题 >> GRE试题:GRE北美试题1

发布时间：2006-06-22 13:25     点击：

    (E) estimate the total HDR resource base in the United States

    24. It can be inferred from the passage that the availability of temperature-depth records for any specific area in the united States depends primarily on the

    (A) possibility that HDR's may be found in that area

    (B) existence of previous attempts to obtain oil or gas in that area

    (C) history of successful hot water or steam recovery efforts in that area

    (D) failure of inhabitants to conserve oil or gas reserves in that area

    (E) use of coal as a substitute for oil or gas in that area

    25. According to the passage, in all HDR recovery systems fluid will be necessary in order to allow

    (A) sufficient permeability

    (B) artificial stimulation

    (C) drilling of holes

    (D) construction of reservoirs

    (E) transfer of heat

    26. According to the passage, if the average geothermal gradient in an area is 22℃ per kilometer of depth, which of the following can be reliably predicted?

    Ⅰ.The temperature at the base of a 10-kilometer well will be sufficient for the production of electricity.

    Ⅱ Drilling of wells deeper than 10 kilometers will be economically feasible.

    Ⅲ Insufficient water is present to produce eruptive phenomena

    (A) Ⅰ only

    (B) Ⅱ only

    (C) Ⅰ and Ⅱ only

    (D) Ⅱ and Ⅲ only

    (E) Ⅰ.Ⅱ. and Ⅲ

发表评论： 匿名发表 用户名: 查看评论

您将承担一切因您的行为、言论而直接或间接导致的民事或刑事法律责任 留言板管理人员有权保留或删除其管辖留言中的任意内容 本站提醒：不要进行人身攻击。谢谢配合。