首先证明存在大气压强的实验是______;最早较准确测出大气压强值的是意大利科学

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问题:

首先证明存在大气压强的实验是______;最早较准确测出大气压强值的是意大利科学家______及其他的同伴们.

考点:大气压强的存在及应用
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慢性呼吸衰竭的患者,下列哪项处理不利于呼吸道通畅()

A.糖皮质激素

B.采用快速利尿剂

C.口服或雾化祛痰剂

D.痰液黏稠者补液

E.无力排痰者翻身拍背

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补全对话,每空一词。

A: Are you from 1           ?

B: No, I'm from Australia. But I have 2             to America before.

A: 3             did you go there?

B: Last year.

A: 4             did you get there?

B: By air.

A: Is the country 5            ?

B: No, it's large, but the population is small.

A: 6             7             did you stay there?

B: For about two months.

A: By the 8            , 9             the weather 10            in America?

B: It's not very good, but it's certainly interesting. It's often cold in the north and windy in the east.

    It's often wet and warm in the south.

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下列选项中符合“创造条件让更多群众拥有财产性收入”这一要求的是:

①积极推进资本市场的健康发展

②让各种生产要素参与收益分配

③提高利率增加居民的股票收入

④初次分配和再分配都注重效率和公平

A.①③

B.②③

C.①②

D.②④

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当回转式空气预热器的入口烟气温度降至120℃以下时,方可停止回转空气预热器的运行。

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温度计打碎了怎么办?

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