首页
登录
职称英语
[originaltext]W: Today’s guest on "Science Update" is David Brown. Dr. Brown, y
[originaltext]W: Today’s guest on "Science Update" is David Brown. Dr. Brown, y
游客
2024-05-29
13
管理
问题
W: Today’s guest on "Science Update" is David Brown. Dr. Brown, you and your team have found bacteria far below the Earth’s surface. You must be thrilled about your discovery.
M: Well, yes, it’s very exciting. For a long time we’d suspected the presence of such organisms, but we lacked substantial evidence.
W: How did you confirm the existence of the bacteria?
M: Well, technology helped. Our drilling techniques have improved significantly, and so the risk that Surface bacteria could be mistaken for those found at much greater depth was reduced. With the new techniques, we could get much deeper into the Earth.
W: How far down did you actually get?
M: In one case, about three kilometers. We were surprised, I must tell you, that there were organisms that far down.
W: You know, it sounds like fiction, something like a lost world.
M: Let’s call it a hidden biosphere, and it’s probably a very extensive one. The mass of the living organisms below the surface may be equal in size to the mass of the surface bacteria.
W: Have you found any unique life-forms?
M: Yes. We’ve found a very special organism. Let’s call it Type-A bacterium. It can live and grow only where there is no oxygen.
W: Is there any danger of these bacteria infecting people when you bring them to the surface?
M: These bacteria were adapted to an environment that’s completely different from humans’. That’s to say. they could not survive in our environment. So we really don’t need to worry about these bacteria causing illness in people.
选项
A、Modern experiments.
B、Advanced technology.
C、Precise statistics.
D、Keen observation.
答案
B
解析
对话中,布朗博士提到,是科技帮了忙。尤其是钻孔技术突飞猛进,因此选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3610096.html
相关试题推荐
Forme,scientificknowledgeisdividedintomathematicalsciences,natural
Forme,scientificknowledgeisdividedintomathematicalsciences,natural
Forme,scientificknowledgeisdividedintomathematicalsciences,natural
Forme,scientificknowledgeisdividedintomathematicalsciences,natural
[originaltext]Aperson’ssocialprestigeseemstobedeterminedmainlybyh
[originaltext]EachdayeverypersonintheUntiedStatesthrowsawaymoret
[originaltext]EachdayeverypersonintheUntiedStatesthrowsawaymoret
[originaltext]EachdayeverypersonintheUntiedStatesthrowsawaymoret
[originaltext]W:SowhatarethetwomaintimesofthedaythatyouwatchTV?
[originaltext]W:SowhatarethetwomaintimesofthedaythatyouwatchTV?
随机试题
[originaltext]W:YouAmericansarefunny.Itseemsasifyouweremarriedwith
Itwasgoingtohaveroughlytheeffectofaneutronbombattackonhighstr
Therearetwofactorswhichdetermineanindividual’sintelligence.Thefirs
Thecontinuouspresentationofscarystoriesaboutglobalwarminginthepop
ThestudywaswrittenandresearchedbyBritain’sNationalConsumerCouncil(
学生解题时,能做到“一题多解”,说明他的哪种思维能力强?( )A.具体思维
维持正常红细胞在血循环中的完整性,与下列何项无关A.红细胞内在环境正常B.单核-
扶贫工作组下村了解扶贫工作时,某贫困户感慨道:“扶贫,光给钱不行,关键是得给条致
在西方古代教育史上,提出教育目的在于实现个人的“灵魂转向”,主张“寓学习于游戏”
关于厂区总平面布置要求的说法,正确的有( )。A.对多套火灾危险等级相近的装置
最新回复
(
0
)