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
2024-03-02
5
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] 【S7】
选项
答案
L
解析
根据句子意思判断,atom正确
转载请注明原文地址:https://tihaiku.com/zcyy/3500037.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
【B1】[br]【B15】A、shallowerB、deeperC、lighterD、tighterA在therelationshipsform
【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
[originaltext]Peterwonderedwhyhedidn’thavemanyfriends.Thereasonwa
[originaltext]Peterwonderedwhyhedidn’thavemanyfriends.Thereasonwa
Don’tletthechildplaywithlighter____________________(以防万一他烧到自己).incasehe
Thefirstparagraphofthetextdealsmainlywiththeearthatmosphere’s______.
Thefirstparagraphofthetextdealsmainlywiththeearthatmosphere’s______.
Thefirstparagraphofthetextdealsmainlywiththeearthatmosphere’s______.
随机试题
You’vebeenworkingoutregularlyforquiteawhile,butyou’renowherene
( )是我们党治国理政的一个重大原则。A.统筹发展和安全 B.增强忧患意识
某项目完成估计需要12个月。在进一步分析后认为最少将花8个月,最糟糕的情况下将花
玻璃钢防眩板的密度要求≥1.5g/cm3。()
在一个两位质数的两个数字之间,添上数字6以后,所得的三位数比原数大870,那么原
审计法规定的审计机关权限包括()A.要求提供资料权 B.检查权
下列不得以健康人为受试对象的是A.第二类精神药品的临床试验 B.精神药品的临床
招标投标活动中当事人签订合同应遵守()原则。A.受限 B.透明 C.自愿
发行人出现下列()情形的,中国证监会自确认之日起暂停保荐机构的保荐资格3个月,
在WAIS-RC中,各分测验粗分换算成量表分时使用的计分方法是()。 (A)标
最新回复
(
0
)