I read an example for question one in a book.

來源: 竹杉林 於 2009-07-07 09:58:56 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (177 bytes)

But I can't really remember te book name. I go over too many books to get what I need in my job.

I spend about 30 minutes for a book in libraries and bookstores.

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