根据所给信息填写相对应的化学式: 存在、性质、用途等化学式地球表面约71%被它覆

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问题:

根据所给信息填写相对应的化学式:

存在、性质、用途等化学式
地球表面约71%被它覆盖,在自然界中可以三态形式存在______
化学性质稳定,常用作保护气,空气中含量最高,体积分数约为78%______
可用玉米、高粱等粮食作物经发酵、蒸馏制得,是一种再生能源,也是医疗上常用的消毒剂.______
分子结构与足球相似,应用于材料科学、超导体等方面的研究______

考点:化学式的写法和意义
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According to traditional Cherokee beliefs, we are part of (1) . We don’t (2) with it and we’re not trying to (3) it. We are a part of the Great Life. And within the Great Life, there are three great Laws of Nature, which tell us how we have to live in (4) with everything else. The First Law of Nature is that you don’t take any life without real (5) . So we shouldn’t (6) needlessly. We believe everything is alive, including animals, plants and (7) . And so to us, taking the life of a plant is just as grave a 8() as taking the life of an animal. The Second Law is that everything we do should (9) the Great Life. And everything we do (10) the Great Life, and everything that (11) within the Great Life affects us. So it’s very important that what we do will not (12) other parts of the Great Life. The Third Law basically is that we don’t (13) where we live. And where we live is not our (14) , small community. It’s this (15) . We don’t pour chemical (16) down the drain because they all wind up in the water. It might seem a little difficult to live by those three laws in this (17) society. But there are still a lot of things that we can do to bring these laws into our lives, such as (18) , using the (19) as little as possible, and (20) gardening.

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失踪人的财产代管人向失踪人的债务人要求偿还债务的,可以作为原告提起诉讼。()

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治疗室性早搏的主要目的是()

A.寻找诱因

B.解除顾虑

C.防止合并房性心律失常

D.缓解症状

E.预防室性心动过速、心室颤动,从而避免猝死

题型:填空题

根据新的《中华人民共和国公司法》的规定,公司经理对董事会负责,行使的职权包括( )。

A.拟定公司内部管理机构设置方案

B.制定公司的具体规章

C.经理列席董事会会议

D.公司章程对经理职权另有规定的,从其规定

E.规定投资建设项目受理制定和制定工作程序

题型:填空题

2008年5月12日14时28分,我国四川省汶川县发生8级强震,造成巨大的人员和财产损失。回答题。

这次地震的震源深度为20千米左右,岩层的断裂处位于:()

A.地壳中

B.上地幔中

C.下地幔中

D.地核中

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