The biggest oil spill happened in 1989. [br] Scientists are studying and develop

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问题 The biggest oil spill happened in 1989. [br] Scientists are studying and developing solar power, wind power, and hydroelectric______to replace oil.

选项

答案 technologies

解析在文章最后一段，作者提到了科学家们正在研究和开发太阳能、风能以及水电来替代石油。

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The biggest oil spill happened in 1989. [br] Scientists are studying and develop

Supposeyouarestudyingatauniversitywhichoffersscholarshipstothosestud

Almostallcompaniestryingtodevelopnewproductsandcreatenewjobshaveto

Thankstothegreatachievementsmadeinthedevelopmentofscienceandtech

Thebiggestoilspillhappenedin1989.[br]Scientistsarestudyinganddevelop

Thebiggestoilspillhappenedin1989.[br]Fromtheauthor’spointofview,th

Thebiggestoilspillhappenedin1989.[br]Thepollutioncausedbyoilspills

Thebiggestoilspillhappenedin1989.[br]Theauthorsuggestsdrivingincar

Scientiststhinkthemoralists’warningis______.[br]Whatthegovernmentcan

Scientiststhinkthemoralists’warningis______.[br]Themainideainthesec

(尽管极好的演技)____________andwell-developedplotthethree-hourmoviecouldnothol

Animalsdomanyusefulandentertainingjobs.(38)Dogsareparticularlyvalu

Duringthetraditionalweddingceremony,thebridalcouplepromiseseachothe

Anewstudyfoundthatinner-citykidslivinginneighborhoodswithmoregre

Findingoutthatyouareinfectedisusuallyoverwhelming.Evenifyouhads

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患者，男性，32岁。某项目总负责人，突发急性心肌缺血收住心内科病室，因担心到期的

博物馆最关键的功能是（）。A.文物收藏功能 B.文化弘扬功能 C.旅游

某基础底面尺寸为4m×2m，作用在基底的荷载偏心距e=0.07，为进行地基承载力