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

游客2024-06-27 34

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

______theInviernaElectronicscompound,visitorswillfindalargeproductionp

Moreandmorepeoplearesigningupforyogaclassesnowadays,______advantage

Wehavespentalot_______amountofmoneyontheprojectalready.A、inconsiderab

(see)______fromthetopofthehill,wefoundthevillageveryattractive.Seei

幽门梗阻的患者最常发生的酸碱平衡紊乱是A.代谢性酸中毒 B.代谢性碱中毒 C

______是3～4岁幼儿的主要学习方式。

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关于贷款抵押物的保全，下列表述中错误的是（）。A.在抵押期间，若抵押物价值减少

A.下颌缺失 B.上颌缺失 C.上颌缺失 D.下颌缺失 E.下颌缺失属于

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