When did scientists come to realize how the atoms and molecules on the Earth mos

游客2024-06-27 36

问题 When did scientists come to realize how the atoms and molecules on the Earth mostlikely combined to make living things? [br] Harold Urey and Stanley L. Miller did their experiment in order to ______.

选项 A、dissolve some new chemicals
B、find out what may have happened on the Earth 4 billion years ago
C、simulate bolts of lightning on the ancient Earth
D、analyze a liquid

答案 B

解析

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When did scientists come to realize how the atoms and molecules on the Earth mos

Atheoryofteninvolvesanimaginarymodelthathelpsscientistspicturetheway

WhendidscientistscometorealizehowtheatomsandmoleculesontheEarthmos

WhendidscientistscometorealizehowtheatomsandmoleculesontheEarthmos

Formanyyears,scientistscouldn’tfigureouthowatomsandmoleculescombin

Withthepopulationexplosion,scientistswillhaveto______newmethodsofinc

Scientistscandeterminesomeone’sfavoritefoodfromtheirbodyshape.The

Scientistscandeterminesomeone’sfavoritefoodfromtheirbodyshape.The

Scientiststhinklaser(be)______oneofthemostusefultoolstoday.tobetobe在此

Scientistshavedonealotofstudytoshowthatpraiseisfar(effective)_____

[originaltext]W:Fastenyourbeltplease,sir.M:Ofcourse.Ididn’trealizew

Atthebeginningofthenineteenthcentury,workersweredifferentiatedbys

Theproduction______ofthefactoryisnow800,000units.[originaltext]近义词辨析[/o

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以下哪一种表现不属于运动性心脏增大?（ ）A.心动徐缓．每搏输出量增加 B.

解决器官移植排斥反应的根本途径是A.选择与受者HLA尽量匹配的供者 B.除去移

某公司2018年年初资产总额为3000万元、年末资产总额为3500万元、资产负债

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