清白还是要自证一下，看看这张图是不是P出来骗人的？
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dont make mistake of thinking sth is valuable merely because
you can measur eit.
it is far better to work out what you value and then see if you can measure it.
it is far better to work out what you value and then see if you can measure it.
Huasing Association 1999 - 2013