Why is cancer one of the leading killers in the U. S. now but wasn't even on the charts in 1665?
为什么癌症现在是美国人的头号杀手,却甚至没有在一六六五年的名单中出现
But now the reason why I came here is
但是现在我来这里的原因是
So the most basic answer that doesn't explain why is just to say well, the s orbital is lower in energy than the p orbital, but we now have a more complete answer, so we can actually describe why that is.
所以最基本的答案是那没有解释,所以我们事实上可以描述,为什么是那样,但是我们现在有一个更复杂的答案,又是有效电荷量。
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