A common thread throughout is that the Flexnerian model of medical education may now be in for changes nearly as profound as those Flexner proposed 100 years ago.

贯穿整个讨论的主线是Flexnerian式模型的医药教育可能现在仍然是为了改变现有系统，而且几乎与100多年前Flexner提出这个模型时一样具有深刻意义。

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The utility model relates to a medical orthopaedics left-hand drill bit for drilling a left-hand thread hole. A metal drill rod is carved with a left-hand groove.

本实用新型涉及一种可以钻左旋丝孔的骨科医用左旋钻头，它是在一个金 属钻杆上镂刻有左旋凹槽。

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