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All T cells come from progenitor cells from the bone marrow which become committed to their lineage in the thymus.

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All T cells begin as CD4-CD8-TCR- cells at the DN (double-negative) stage, where an individual cell will rearrange its T cell receptor genes to form a unique, functional molecule which they in turn test against cells in the thymic cortex for a minimal level of interaction with self-MHC.

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chenjuanxu

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µÚÒ»¸öwhich Ö¸bone marrow£¬ÊÇÒ»¸ö¶¨Óï´Ó¾ä¡£Ö÷ÓïÊÇAll T cells
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2Â¥2010-07-11 16:43:18
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houjinglhy

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Originally posted by chenjuanxu at 2010-07-11 16:43:18:
µÚÒ»¸öwhich Ö¸bone marrow£¬ÊÇÒ»¸ö¶¨Óï´Ó¾ä¡£Ö÷ÓïÊÇAll T cells
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µÚÒ»¾ä¡°which become committed to their lineage ¡± Ôõô·­Ò룿 ÓÈÆäÊÇcommited

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3Â¥2010-07-11 16:51:41
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chenjuanxu

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houjinglhy(½ð±Ò+2, ·­ÒëEPI+1):лл 2010-07-11 18:36:31
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Originally posted by chenjuanxu at 2010-07-11 18:26:10:
ÊÇ˵¹ÇËèÓÐÔìѪµÄ¹¦ÄܰÉ
ÎÒÈÏΪ¿ÉÒÔÓÃthat´úÌæ£¬µÚÒ»¸ö¿ÉÒÔ¼Ó"£¬¡±µÚ¶þ¸ö¸Ð¾õ²»¿ÉÒÔ

µÚ¶þ¾ä£¬Èç¹ûÊǶ¨Óï´Ó¾äµÄ»°£¬ºóÃæµÄtheyÊÇʲô³É·Ö£¿ ÄѵÀÓÐÁ½¸öÖ÷Ó
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zerohead

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houjinglhy(½ð±Ò+2):ËÆºõÓеãµÀÀí 2010-07-11 19:08:07
A simple way to answer your question is to rewrite the sentence into some simple sentences, but I doubt whether you can do that as it seems that you quite don't understand the original sentence as I do.

That's quite normal, as the original one MAY not be a correct one in terms of gramma. For example, if someone say "the former 3 stations ...", how could you explain the English usage of that phase when it is wrong?
6Â¥2010-07-11 19:00:26
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YYxiuyu

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7Â¥2010-07-11 19:13:18
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YYxiuyu

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chenjuanxu

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commited to ÊÇÖÂÁ¦ÓÚ£¬¹ÇËèÖÂÁ¦ÓÚÔìѪ£¬ÊÇ˵¹ÇËèµÄÔìѪ¹¦ÄÜ
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houjinglhy

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Originally posted by YYxiuyu at 2010-07-11 19:17:09:
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µÚ¶þ¾ä ¡° which they in turn test against cells in ¡± Õâ¸ö¡°they¡±ºÍwhich²»³åͻô£¿ Õâ¸ötheyÊǶàÓàµÄ£¿ÎÒËùÓв»¶®µÄ¾ÍÊÇÕâÀµ«ÊÇûÈ˽â´ð¡£¡£¡£¡£

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All T cells come from progenitor cells from the bone marrow which become
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