There are a number of vitamins that are vital for good hair health, the main ones being vitamins C, D and E, and in a balanced diet all these vitamins should be readily available.

有许多对头发健康至关重要的维生素，主要有维生素C、D和E，而在平衡的饮食中所有这些维生素应该很容易获得。

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A: Scientists have identified five unique hepatitis viruses, identified by the letters a, b, c, d, and E. While all cause liver disease, they vary in important ways.

答：科学家们已经识别出五种截然不同的肝炎病毒并以甲、乙、丙、丁、戊型作为辨识。虽然它们都会引起肝病，但在重要方面又有所不同。

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"I got a plan c, d, E. I got welding, masonry, carpentry, maybe computers," he says.

“我有其他计划，包括学习焊接，泥瓦工，木工，也许还有电脑什么的，”他说。

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"There are concerns in most O.E.C.D.countries that the number of nurses is too small to respond to the demand.

VOA: special.2010.06.07

So they began to call this A and this B and this C and this D and this E, this F, this G.

他们开始把这叫做A,B和C,这个是D,E,F,G

耶鲁公开课 - 聆听音乐课程节选

We got to go C, D, some kind of E, F.

而是C,D,某种E,F

耶鲁公开课 - 聆听音乐课程节选

Furthermore, the wings that made up the building were named in an unclear sequence: B wing gave onto A wing, followed by E, D, and C wings.

NEWYORKER: Groupthink

The spectrum is being auctioned off in five blocks, labeled A, B, C, D and E.

FORBES: Google Likely Out, And Happy

And she is reading the - an alphabet that was especially arranged so that the first letter she says - it doesn't go A, B, C, D, E.

NPR: A Beautiful Movie: 'The Diving Bell and the Butterfly'