Why does the author mention the discovery of air pressure? From the passage we know that ______.

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问题 Why does the author mention the discovery of air pressure?
From the passage we know that ______.

选项 A、it was Galileo that formed the hypothesis of air pressure
B、Torricelli was confused by the problem of the water-pump
C、Pascal’s experiment further proved the air-pressure hypothesis
D、the weight of mercury column influenced air pressure

答案C

解析

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大学英语四级

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Why does the author mention the discovery of air pressure? From the passage we know that ______.

大学英语四级

A、Becausethedemandforfoodincreased.B、Becausebadweathercausedthethreatoffoodshortage.C、Becausetheproductionoff

Onmylastvisit,aboutthreemonthsago,mydoctorhadtoldmethatasa6-foot-tall,39-year-oldman,Ishouldweigharound18

A、Themanshouldsendhiswifetogoshoppingnexttime.B、Theman’swifehasthefinaldecision.C、Themanshouldlearntoturn

RussiaisthelargesteconomicpowerthatisnotamemberoftheWorldTradeOrganization.Butthatmay【B1】______.LastFriday,

Theprospectsforwomenwhoarescientistsandengineersatmajorresearchuniversitieshaveimproved,althoughwomencontinuet

Tell-AllGenerationLearnstoKeepThingsOfflineMinLiu,a21-year-oldliberalartsstudentattheNewSchoolinNewYork

A、Husbandandwife.B、Friends.C、Strangers.D、Colleagues.A本题考查人物关系。对话中女士提到，Ann曾经告诉过她男士的职业，男士又说，AnnandIarereadyforachange

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A．肛周肿痛伴发热C．反复发作的肛周红肿疼痛，窦道外口流出脓性分泌物D．肛门疼痛，伴有局部暗紫色肿块E．排便时出血、无痛肛裂()

如发生重大事项后，拟发行公司仍符合发行上市条件的，拟发行公司应在报告中国证监会后第3日刊登补充公告。( )

证券公司应当按照上一年营业费用总额的( )来计算营运风险的风险准备。

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世界上第一台计算机是1946年美国研制成功的，该计算机的英文缩写名为()。

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