The new H and N surface proteins mean most people do not have antibodies to the virus, allowing it to go pandemic.
新H 和N表面蛋白这意味着多数人对这病毒没有抗体,使其得以流行。
So, why don't you go ahead and tell me, keeping that in mind, which atom in terms of h c or n would you expect to be in the center of hydrogen cyanide?
那么,请大家来告诉我,并且记住它,你认为氢,碳和氮中哪个原子,应该在氰化氢的中间呢?
So, if we took the case of nitrogen, if we add an electron to nitrogen and go to n minus, we find that the change in energy is 7 kilojoules per mole.
如果我们以氮为例,如果我们给氮增加个电子令它变成-1价的氮,我们会发现能量的变化是,7,千焦每摩尔。
After he leaves New York, he will go to Chile and Brazil. He spoke to reporters after a meeting with the U.N.
VOA: standard.2009.03.25
So, if we took the case of nitrogen, if we add an electron to nitrogen and go to n minus, we find that the change in energy is 7 kilojoules per mole.
如果我们以氮为例,如果我们给氮增加个电子令它变成-1价的氮,我们会发现能量的变化是,7,千焦每摩尔。
And unlike n, l can start all the way down at 0, and it increases by integer value, so we go 1, 2, 3, and all the way up.
不像n,l可以从0开始取,然后每次增加一个整数,所以我们可以去1,2,3,一直下去。
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