首页
登录
职称英语
Dalton wondered why the heavier and lighter gases in the atmosphere did not sepa
Dalton wondered why the heavier and lighter gases in the atmosphere did not sepa
游客
2023-07-31
17
管理
问题
Dalton wondered why the heavier and lighter gases in the atmosphere did not separate as oil and water do. He finally concluded that the constituent【S1】______ must exist in the form of【S2】______ particles or atoms and that these must be completely mixed together in the【S3】______ . This threw a new light in the laws of definite proportions. It was only necessary to suppose that the atoms could combine into small groups of uniform【S4】______ and so form more complex substance; thus the mystery of this law was【S5】______ . Dalton suggested, for example, that carbon monoxide is formed by the one with one【S6】______ of atoms of carbon and oxygen, while carbon dioxide results from a single【S7】______ of carbon uniting with two atoms of oxygen. Assuming this to be true, then the definite proportions of Prout’s law (for all chemical compounds the different constituents【S8】______ enter in unvarying proportions) would naturally【S9】______ the relative weights of the many【S10】______ kinds of atoms.
A measure B structure C things D unite
E oxygen F different G solved H atmosphere
I discovered J gases K describe L atom
M tiny N always O pairing [br] 【S4】
选项
答案
B
解析
根据句子意思判断,这里需要“结构”这个词、而B合乎题意
转载请注明原文地址:https://tihaiku.com/zcyy/2883774.html
相关试题推荐
【B1】[br]【B8】A、environmentB、spaceC、atmosphereD、earthC掌握基本词汇。此处关键在于理解。前面pene
【B1】[br]【B15】A、homeB、societyC、houseD、communityAprotectiveatmosphere提示这里应当
Theatmosphereandoceansarenottheonlypartsoftheenvironmentbeingda
【S1】[br]【S7】B由句法结构看,该题应填入一个名词,选项中的名词有atmosphere,negotiations,policies。由下文的This
【S1】[br]【S6】E从语法结构看,该题应填入一个名词,选项中符合这一要求的单词有atmosphere,negotiations,policies。从句
[originaltext]Peterwonderedwhyhedidn’thavemanyfriends.Thereasonwa
[originaltext]Peterwonderedwhyhedidn’thavemanyfriends.Thereasonwa
Don’tletthechildplaywithlighter____________________(以防万一他烧到自己).incasehe
Thefirstparagraphofthetextdealsmainlywiththeearthatmosphere’s______.
【B1】[br]【B13】A、earthB、spaceC、atmosphereD、environmentC词义辨析题。本句的意思是“射线对中
随机试题
[originaltext]Aperson’ssocialprestigeseemstobedeterminedmainlybyh
TheBureauofLaborStatisticspredictssomejobsectorsstillwillbehotbetwe
[originaltext]W:Hi,Tom!M:Judy.Ihaven’tseenyouinweeks.Wherehav
一项调查结果显示,许多大学生每日阅读时间不足1小时,而上网时间却超过了4小时。Accordingtoasurvey,manycollegestude
侵蚀性葡萄胎及绒毛膜癌最常见的转移部位是A.肺内转移 B.阴道转移 C.脑转
挂篮的组成有主桁架、悬吊系统以及()。A、拆除系统 B、平衡重 C、锚固系统
下列犯罪分子中,应当认定为主犯的是A.教唆犯 B.实行犯 C.犯罪集团的首要
三年前曾行破伤风自动免疫者,受伤后应作下列哪项处理即可预防破伤风? A.需再
关于尿素循环的叙述,下列哪项是的? A.肝是合成尿素的主要器官B.尿素分子中
有关进口药品说法正确的是A.申请进口的药品应当获得境外制药厂商所在生产国家的上市
最新回复
(
0
)