句意：——你怎么拼读你的名字？——K-E-L-S-E-Y.根据K-E-L-S-E-Y. 可知这是在问如何拼读。How do you spell...？你怎么拼读……？故选B。
All the data that determines the qualities of natural elements is stored in atomic nuclei, and there are not too many kinds of those (a little over a hundred). It's electrons and virtual photons that bind those hundred different kinds of atoms into the unimaginably vast diversity of ...
A neon light is the sort of light you see used in advertising signs. These signs are made of long, narrow glass tubes, and these tubes are often bent into all sorts of shapes. The tube of a neon light can spell out a word, for example. These tubes emit light in different colors. ...
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